INK JET PRINTERS

EBS-6100/6200serie
Service Guide
VERSION 3.61_GS May 2010

EBS Ink-Jet Systems GmbH

Alte Ziegelei 19-25, D-51588 Nümbrecht

+49 (0)2293 / 939-110
Fax +49 (0)2293 / 939-3
http://www.ebs-inkjet.de
1
1. GENERAL INFORMATION

1.1 PRODUCT OVERVIEW EBS-CIJ (C)ONTINUOUS (I)NK (J)ET

EBS-6200 – Standard model for all kinds of dye stuff-based inks. Improved
ink circulation system, new valve and new keypad design.

EBS-6200P - Special model for full pigmented MEK and Aceton based inks.
Special, modified ink circulation system to handle pigmented inks.

EBS-7100 – New high speed model (95KHz) for standard black ink. Top
model with touch screen display and 30%-50% faster printing speed.

EBS-6500 (probably available in 08/2010)

Special economic model mainly for “low price” markets as in China, India or
Russia. Designed with easy exchangeable ink system blocks and fixed
service intervals.

All type of printers are optionally available as Mini (16Dots), Midi (25Dots) or
Maxi (32Dots)

DIVERSE

DC/DC Converters,
Photo detectors,
Valves,
Inks & Solvents

SOFTWARE

EDGRAF
WiznetEthernet network

2
1.2 Basic Construction of the EBS CIJ Printer

Display-Board
Power Supply Board

GDT-Board
Pump Driver Modul

Terminal
RKM-Board (CPU)

Ink Circulation System

Ink & Solvent Print head’s

compartment supply tube

Print Head

EBS-6100
An EBS-CIJ Printer can be subdivided in three parts:
1.2.1 Ink Circulation System
The ink circulation system mainly consists of the following components: Ink pressure- and vacuum
pump, mixing tank, sensors and valves.
The system produces 2.7 bar ink pressure, supplies the print head with ink and controls the level of
ink in the containers.
In the lower door compartment the ink and solvent bottles are located on the corresponding
antennas. The antennas monitor the correct type and the expiry date of the consumables

1.2.2 Electronic Part

The firmware on the the CPU Card determines the type and version of printer, controls all
components in the ink circulation system and stores the texts and printing parameters.
Power Supply board: Input voltage: 100V-240V AC Frequency 40-400Hz,
Output voltages : -15V, -12V, 5V, 12V,15V, 24V, 300V charging voltage and 4.5kV high voltage.
The Pump Driver modul (only in EBS-6100) produces the operating voltage for the ink and vacuum
pump and provides galvanic separation between CPU card and pumps
Terminal, Display and GDT Board enable the user to control the printer, for e.g.: Creation of texts.
The graphic display monitors the menu and the actual state of the printer

1.2.3 Print Head

The four meter supply tube connects the ink circulation system with the print head and protects all
tubes and electrical wires. The print head provides contact-free printing on various objects and
surfaces

3
1.3 Print head EBS CIJ-Printer
Ink supply tube Charging electrode High Voltage electrode

Filter holder Piezo Nozzle 60µ Gutter

1.2.1 Functional description of components

Ink supply tube: Supplies the print head with ink.
Filter holder: Connects the ink supply tube with the piezo. The flange on the outlet of the gun filter holder fixes the
nozzle filter.
Piezo (Gun): The piezo oscillates at a frequency 62.5kHz and breaks off a continuous ink stream in single drops.
Nozzle: The 60µ ruby of the screwable nozzle generates a stable ink stream and forms the drops to the required
rounded shape and size.
Charging electrode: The metal angle transmitts electrical charging impulses to the drops.
High Voltage electrode: The HV electrode deflects in a constant electrical field the drops vertically.
Gutter: The gutter catches the ink stream and leads the ink back in the ink circulation system.

1.2.2 Principal of operation

INK

• The pressurised continuous ink stream is

PIEZO broken from the piezo (gun) in single drops.

• The drops are charged with different levels of

NOZZLE
CHARGING
charging impulses underneath the charging
ELECTRODE electrode at the same moment when they
INK break off from the continuous ink stream.
RETURN
HIGH VOLTAGE
ELECTRODE • The drops are deflected by a constant
electrical field in a vertical plane while passing
the high voltage electrode

• The objects which have to be printed on, move

in front of the print head and the vertical rows
GUTTER
are printed one by one depending on
characters of the printed text
INK-JET
EBS • All uncharged drops are caught from the gutter
and returned back to the ink circulation system

4
2. SAFETY REQUIREMENTS
• It is advisable that the operation of the printer is supervised.
• A fire extinguisher designed to flammable solvent fires must be placed within easy reach of
the unit.
• The unit must not be operated in rooms where an explosion hazard exists.
• No overprints can be made on products whose temperature exceeds 100°C at the time of
printing.
• No open fire or spark producing devices are allowed in the area where the unit operates.
• Power supply cord must be connected to a socket where a protective pin is used. The
efficiency of earth should comply with the applicable standards.
• As mains electricity is used to supply the printer and high voltage (of up to 4.30 kV), is
generated inside the printer, any manipulations in the electrical part of the printer and inside
the head should be conducted only when the mains plug is removed from the mains socket.
This requirement does not apply to manipulations conducted by trained service staff. The
head is allowed to be washed when the unit is connected to the mains, provided however
that the print head is not in the print mode, that means the high voltage is turned off ! - the
PRINT ON/OFF lamp on the external panel is not on. Any adjustments inside the head (for
example, the ink jet adjustment) need to be made when high voltage is off.
• Protective clothing must be worn and ink splashing avoided while conducting any operations
concerning the washing and cleaning of the head or ink system and the replacement of ink
bottles or other system components. Especially eyes need protecting during such
operations. It is advisable to wear protective glasses.
• Comprehensive washing and cleaning of the head and other system components that are
soiled heavily should be done only after the unit has been switched off. Plastic vessels,
especially those collecting static electricity, must not be used to do the washing. Metal
vessels are recommended.
• Air contaminated with solvent should be carried away to the outside of the building through
a clear duct.
• No ink, solvent or wash-up (or waste fluid remaining after the head has been washed)
should be left in open vessels as these inflammable fluids may ignite from accidental
sources of fire such as a spark, cigarette end, hot element, etc.

WARNING:
Static electricity collected by people (on their plastic clothes or in their hair, for example) may
spark-over to ink or wash-up vessels when they have been left open. The ink and wash-up are
inflammable and may ignite! Therefore, before you approach the open vessels containing
inflammable fluids, discharge static electricity by touching the metal printer housing or another
metal object that is connected to the earth.

When ink or solvent spills occur, the spilled fluid should be wiped with a piece of absorbent
material and then disposed of in compliance with fire, health and safety at work (HSE)
regulations.
If the clothing has been splashed, remove it as soon as possible.
Should the eyes or skin get irritated:
EYES need to be rinsed with running water for at least 15 minutes, then you should
see your eye doctor,
SKIN needs to be washed with water and soap.

5
3 TERMINALS EBS-6100/6200
3.1 CONNECTIONS

Special-channel interface c c mains plug !

connector (to connect a PC)
c

 or 

Mains electricity with an earthing contact

M5

PHOTO DETECTOR SHAFT-ENCODER

socket socket

head casing is electrically earth terminal

connected with an earthed
conveyor
2 3
earth bar

d
1 4


Photo/Shaft Output: NPN (NC)

PIN 1: not connected PHOTODETECTOR

SHAFT-ENCODER
PIN 2: GND, 0V
CONNECTOR
PIN 3: +24V
PIN 4: Output

6
3.2 Removing and preparing the ink system for transport
The tanks are protected against spilling the liquid contents in the event the printer tilts or
shakes during carriage. Therefore some of the internal connections are separated and the tips
of the connections are capped. The protections need to be removed and each of the
connections restored.

3.2.1 EBS-6100 view

3.2.2 EBS-6200 view

The following connectors (couplings) must be protected:

1 – connection to the vacuum (air) filter

2 – connection to the head gutter (return pipe)
3 – ink suction tube on V3 valve (EBS-6100); conection of ink bottle (EBS-6200)
4 – ink suction tube (EBS-6200 only) Clean the ink suction tube with special sevice command
“Switch off with V3 wash” (see chapter 4.7.3)

Note: It is absolutely essential to remove and close both the ink and the solvent bottle from the
printer. During transportation ink and solvent can run out of the bottles vent-conectors or the
bottles may get mechanically damaged.
7
4. Basic construction of EBS-6200
4.1 Principle of the Diaphragm Pump
4.1.1 Functional description
An elastomer diaphragm (see illustration) is moved up and down by an eccentric. On the down-
stroke it sucks in the ink (air or gas) being handled through the inlet valve. On the up-stroke the
diaphragm forces the medium through the exhaust valve and out of the head. The compression
chamber is hermetically sealed from the drive mechanism by the diaphragm. The pumps
transfer and compress completely oil-free.

exhaust valve INK OUT inlet valve INK IN

compression
chamber

diaphragm (membrane)

essentric

8
4.1.2 Assembling of ink pressure and vacuum pump

O-rings

Vacuum pump

Out

In

Diaphragm Inlet- exhaust valve

Out

In

Ink pump

Sealing gasket

4,1.3 Spare parts for pumps EBS-6100/EBS-6200

6820007 Vacuum pump EBS-6100
6820006 Ink pump EBS-6100
M320010 Valve plate (inlet- exhaust valve) for vacuum pump x2
M320011 O-ring for vacuum pump x2
M320012 Valve plate (inlet- exhaust valve) for ink pump x2
M320013 Sealing gasket for ink pump x4
M320014 Diaphragm for ink pressure pump
M320015 Lock nut for ink pressure pump x2 (see 7.4.4 Replacing the main ink filter)
M320016 Gasket for ink pressure pump x2 (see 7.4.4 Replacing the main ink filter)

9
4.2 View of ink circulation system

Vacuum Pump

Solvent Pump
Ink Pressure Pump

Pressure Stabilizer
Vacuum Sensor

Tank
R3

Ink Pressure Sensor

Main Ink Filter Vacuum Filter

Functional description of components

4.2.1 Ink pressure pump (12V DC motor, max. 6bar):
• Produces 2,7bar ink pressure in the ink circulation system and print head.
• Pulse driven diaphragm pump, monitored by the ink pressure sensor (transducer).
• Operating voltage is limited to 7,5 Volt.
4.2.2 Ink Pressure Sensor:
• Produces an analog output voltage from 0,5-2,5 Volt by an effective ink pressure range from
0bar  4bar.
• Controls the switching on and off periods of the ink pressure pump.
U/Volt
3
reference line
2,5 ink pressure sensor

1,5

0,5

0 P/bar

0 1 2 3 4
10
4.2.3 Vacuum pump (12V DC motor, max. -0,7bar ):
• Produces vacuum in tank R3 to add ink or solvent.
• Returns the ink from the print head to tank R3.
• Sensor controlled diaphragm pump. Nominal adjusted vacuum level is 50% which
corresponds to an actual vacuum of -0,35bar in tank R3.

4.2.4 Vacuum Sensor:

• Produces an analog output voltage from 0,5-0,15 Volt by an effective vacuum range from
0bar  -0.7bar.
• Controls the switching on and off periods of the vacuum pump
U/Volt
0,6

0,5

0,4

0,3

0,2
reference line
vacuum sensor
0,1

0 V/-bar
0 0,1 0,2 0,3 0,4 0,5 0,6 0,7

4.2.5 Pressure Stabilizer:

• Consists of three separate chambers: Ink inlet, air cushion- and ink outlet chamber. The
chambers are separated with two membranes
• The ink flows through a small pipe (internal diameter = 0,5mm) from the inlet to the outlet
chamber.
• Reduces the ink pressure fluctuation in the print head.

4.2.6 Tank R3:

• Mixing tank of ink and solvent.
• Vacuum is applied constantly.
• Storage tank for the returned ink from print head.
• Ink level is monitored by a sensor with two active states:
SB3 on  minimum level  add ink or solvent
ST3 on  error  Overfill R3

4.2.7 Solvent pump:

• Consists of an ink and solvent chamber, which are separated by one membrane.
• Cleans and rinses the print head, return- and ink tubes

11
4.3 View of electronic section

Positive air pressure

adjust. potentiometer
Pump driver module
MSP 6100R/6200R
Temperature
sensor

Valve control board VA-4

Heads positive
air pressure pump

4.3.1 Valve control board VA-4

• The additional temperature sensor on the valve control board permanently checks the
temperature in the electronic compartment. The blockage of the air filter under the fan or a
non-functioning fan are detected immediately to avoid overheating and further damage to
sensitive electronic components. The actual temperature is indicated on the display status
window.
• The valve control board lowers the 24V switching-on voltage immediately after activation of
the valve to 5V operating voltage only .
• The generation of heat in electronic section and the power consumption of the printer is
reduced strongly.
4.3.2 Pump driver modul
• The optocoupler circuit protects the CPU (RKM-board) against voltage peaks when
switching the pumps on and off.
• Transforms 24V DC to 12V and 8V DC. Produces the operating voltage for the ink
pressure-, vacuum- and positive air pressure pump.
• Electronic regulation (6V-12V) of positive air pressure in the print head.
4.3.4 RKM-board differences

• RKM-boards from EBS-6100 can be installed in EBS-6200.

• A wire connection must be added to supply the vacuum
sensor connector with 5 Volt. The jet software has to be
changed to EBS-6200 version.
• RKM-boards from EBS-6200 can be installed in EBS-6100
only by changing the jet software.

12
4.4 Ink Valves in EBS-6200
4.4.1 Design of new valves

plunger plunger o-ring

guide with spring seal

snap ring

solenoid union o-ring valve

valve coil nut seal chamber

4.4.2 Valve types

In the EBS-6200 ink system three different types of valves are used:

Valves V1,V3, V4 and V5:

out

in

Valves V6 and V0

out

out

in

Valve V81
out

in

13
4.4.3 View of valves in the ink system
The ink valves are placed in the ink ciculation system above tank R3. The valve outlets are connected
to the valve terminal block and fixed to it each with two cross head screws.

V6 V5 V4 V3 V1 V0

V81

Tank R3

The valve V81 is not connected to the valve terminal block as the other valves. It is attached to the
underside of the separation plate between the electronic- and ink circulation compartment.

to print
head

V81

to solvent
pump

14
4.4.4 Valves terminal block

stabiliser

stabiliser solvent
pump

ink bottle

V0 V1 V3 V4 V5 V6

to print head to tank R3 to solvent pump

Functional description of valves

4.4.4.1 Valve V0
• Print head’s ink supply valve
• The valve is active during the “Service” commands: V0 On/Off or Ink On/Off on keypad.
4.4.4.2 Valve V1
• Ink suction valve
• The valve is active during the switching on/off procedure and the “Service” commands: Clean
Nozzle, Fast Off, Ink Off
4.4.4.3 Valve V3
• Ink dosage valve
• The valve is active, when in tank R3 the level of ink reaches minimum (level sensor SB3 is
on) and viscosity is negative(<0)
4.4.4.4 Valve V4
• Solvent dosage valve
• The valve is active, when in tank R3 the level of ink reaches minimum (level sensor SB3 is
on) and viscosity is positive(>0)
4.4.4.5 Valve V5
• Solvent pump control valve. The valve releases the pressure from the ink chamber of solvent
pump
• Active during switching on/off, refilling and filtering procedures
4.4.4.6 Valve V6
• Solvent pump control valve. The valve pressurizes the ink chamber of solvent pump
• Active during switching on/off, refilling and filtering procedure
4.4.4.7 Valve V81
• Print head’s solvent supply valve
• The valve is active during switching on and off procedures and the “Service” command
Solvent
15
4.5 PRINCIPLE OF OPERATION EBS-6200

Schematic diagram of ink system.

blowing pump

vacuum vacuum ~
sensor pump Air filter
blow - in
gun
~ 4 HEAD
Filter
Air filter Solvent pump
Pressure
sensor V4
V3
R3 3 V81
5
V5
Pressure
stabilizer over 1

R3 V1
vapours outlet
Sb

filter 5 4 3 1
V6 V0 ink solvent
~ ink filter
Ink pump
V6 V5 V4 V3 V1 V0
0

– solvent

– ink R3
0 0

valves block diagram

16
4.6 Servicing the ink valves
4.6.1 Manual activation of valves in EBS-6200 on RKM1-4D board

V2V PRESSURE VAC V81 V6 V5 V4 V3 V1 V0

A valve can be activated manually by a wire jumper with two contacts. Connect the solder joint of
the corresponding valve and the “V2V” joint together to ground-contact. The associated LED of the
valve and V2V LED lights up and the valve turns on.
Do not activate the valve for a functional test longer than one second. By this method it is possible
to check whether the valve is blocked or the coil is out of order. Each valve generates a “Click-
Noise” at the moment of activation. With the same procedure the basic function of the ink pressure
pump (PRESSURE) and the vacuum pump (V91/VAC) can be tested.
Caution:
On the RKM1-4A, 4B and 4D the 24V supply contact is located very close to the solder joint of the
valve V0. Be aware of a shortcut possibility while manually checking the valve V0 !!!
4.6.2 Manual activation of valves on new board RKM1-4EA

V2V PRESSURE VAC V81 V6 V5 V4 V3 V1 V0

17
4.6.3 How to open, clean or replace a valve in EBS-6200

• Unscrew the three screws in electronic

compartment which fix the valve
manifold
cut
• Cut the cable binder from the valve
supply cables and pull the wires as far
as possible downwards into the ink
system

• Unscrew the tank R3 and remove it

from the holder to get a bit more space
to work.

• Depending on the valve you want to

unscrew replace ( V0 or V6 !) make sure that the
pressure in the system is released. (see
chapter 4.7.2.1)

• Move the ink manifold in front, so that

you have easy access to the two valve
manifold cross-head screws from the bottom

• Unsrew the two fixing screws from the

valve as shown in the photo

• Move the unscrewed valve carefully

backwards and take the valve out of the
manifold

• Spray some solvent on the valve oulet

and on the manifold connector
remove
• Take the complete valve to the front and
detach the snap-ring from the top.

• Remove the valve solenoid coil from the

plunger guide

18
 • Detach the tube(s) carefully from the
valve connection

• Use a suitable tool (for e.g specially

prepared screwdriver with a rounded
blade) to avoid damaging the tube

rounded blade

• Unscrew the union nut (metric “12”

spanner) from the ink camber of the
valve and remove the plunger guide
from the valve chamber

• Take out the plunger and the spring from

the plunger guide

Note: If more than one valve has to be opened

(cleaned), do not swap the plunger, plunger
guide and the valve chamber from another
valve.

• Put all parts of the valve in an ultrasonic

bath or clean individually.

• Assemble all parts in reverse order

• Place the plunger guide straight on the

valve chamber and hold it while
screwing on the union nut.

• Do not tighten the nut too strong - the

plastic thread of the plastic valve
chamber can be easily damaged.

• It is recommended especially at
pressure connections such as V0; V1
and V6 inlet to cut and renew the tube’s
end.

19
4.7 NEW COMMANDS, READINGS and MESSAGES of EBS-6200
4.7.1 Changed SET VACUUM command:
Nominal value of vacuum pump now is 50%. The vacuum can be set in a range from 0 to 100%.
50% Vac = -0,35bar 0% vac.  0bar 100% vac.  -0,7bar
When printing application from down to up is required or the print head is placed more than one meter
below the level of the printer it is recommended to increase the vacuum. Please note that the adjustment of
vacuum parameter over 70% level might cause an INK PRESSURE DROP.
The vacuum parameter value is only stored at the last step of normal switching off procedure. The
emergency switch off (main switch) does not save the last adjusted parameter.

4.7.2 New readings in command HV VALUE, PHOTO, SHAFT state

Besides the status readings of HV, photocell

and shaft encoder two new very useful
readings for service are indicated on the
display:

ADC hexadecimal value for ink pressure

and vacuum:
• Pressure hexadecimal value -
following p letter
• Vacuum hexadecimal value -
following v letter
The hexadecimal value of pressure sensor
for e.g.: p = B8 corresponds to the actual ink
pressure in the system.
The hexadecimal value of vacuum sensor
for e.g.: v = 22 corresponds to the actual
vacuum in R3.

4.7.2.1 Checking the INK PRESSURE

The software constantly monitors the output voltage of the ink pressure sensor (transducer) and converts it
into hexadecimal values. With an ink pressure setting of 100% the hex. value “B9” corresponds to the
nominal ink pressure of 2,7 bar.
table of ink pressure values
Hexadezimal value “p” Ink Pressure Sensor output voltage
32 0.00 bar 0.50 V
AF 2.50 bar (93%) 1.75 V
nom. ink press. B9 2.70 bar (100%) 1.85 V
C6 2,97 bar (110%) 1.94 V
D9 Max. Ink Pressure exceeded < 2.00 V

Watching the “p” value of a proper working ink pressure pump and ink system the displayed hexadecimal
values change in a range from B6 – BB.
When servicing EBS-6200 printers it can be very useful to check these values for e.g.:
• “p” values below 60 ensure that the pressure has been fully released in the ink system. The
connectors of ink pressure pump, stabiliser, V0, V6 can be detached without ink spills
• “p” value which do not stay constant after V0 OFF command point to a leakage in the ink system.
• “p” values which fluctuate in a high range for e.g: from AA – BF point to a damaged pump or
blocked main ink filter
• “p” value peaks which are frequently higher than C2 when the pump turns on point to a partially
clogged stabilizer.

20
4.7.2.2 Checking the VACUUM
The software constantly monitors the output voltage of the vacuum sensor (transducer) and converts it into
hexadecimal values. With a vacuum setting of 50% the actual vacuum in tank R3 is at least -0,32bar which
corresponds to the hex value “22”.
The ink “speed” inside the return pipe depends on the viscosity, the ambient temperature and differences of
return pipe diameter. Therefore the efficiency of returning the ink from the gutter changes depending on
these factors. In order to avoid ink flooding around the gutter and to secure the ink return from the print
head, the vacuum control algorithm changes the vacuum pumps on/off intervals depending on the actual
conditions.
On observation of the hex. values on the display, the indicated value fluctuates in a range from 12 – 22,
which means the actual vacuum in tank R3 can be in a range from -0.32bar to -0,64bar

Hexadezimal value “v” Vacuum Sensor voltage (out)

32 0,00 bar 0,50 Volt
2D -0,10 bar 0,45 Volt
28 -0,20 bar 0,40 Volt
23 -0,30 bar 0,35 Volt
22 -0,32 bar 0,34 Volt
21 -0,34 bar 0,33 Volt
20 -0,36 bar 0,32 Volt
1F -0,38 bar 0,31 Volt
1E -0,40 bar 0,30 Volt
19 -0,50 bar 0,25 Volt
14 -0,60 bar 0,20 Volt
0F -0,70 bar 0,15 Volt

table of vacuum values

4.7.2.3 Other values in command HV VALUE, PHOTO, SHAFT state

The other displayed values have the following meaning:
total value of photodetector activations, total value of accepted photodetector activations,
total value of rejected photodetector activations

total value of started printouts, total value of finished printouts

• For total value of started printouts the counter is incremented when the distance in front of the text is
completed.
• For total value of finished printouts the counter is incremented when the last vertical row of drops is
printed.
• The value of rejected photodetector activations concerns only situation when there is no text for print.
It does not concern the situation when the pulse is rejected due to printing just the previous text.
• When the repetition distance is lower than the text length – all repetitions are counted as 1 printout
• To reset the value of the five above mentioned counters finish the command by using the Delete key.

21
4.7.3 SERVICE COMMAND “SWITCH OFF WITH V3 WASH”

This command was introduced to avoid drying up of the ink suction pipe and valve V3. Use this
command before preparing the printer for transportation. The command is only available after setting
the service password in Service menu C Service Commands.

As soon as the command is selected, the question ARE YOU SURE (Y, N) ? is displayed.
When the answer is “Y” the following message appears and sound alarm is on:
Pull out the pipe from ink bottle and put into solvent. Then press ENTER
(Now it is possible to abort the command by pressing Esc key in place of ENTER)

When the ENTER key is pressed the printer automatically goes through the following steps:
• Switches the head off with full rinsing
• Fills the pipes from the ink bottle with solvent (to protect pipe/valve clogging)
• Switches the printer off.
Sound alarm is off when the command is finished or aborted.

4.7.4 ERROR MESSAGES IN EBS-6200

4.7.4.1 GUTTER CIRCUIT CLOGGED
When vacuum pump is off during normal operation for more than 2,5 minutes this error message is
displayed. The error can also appear app. 30sec. after turning the printer on.
• printer has been switched off without cleaning the 4m return tube
• the 4m return tube is squeezed or blocked
• the gutter or the metal joint is blocked by dried ink or impurities
• the return connector on top of R3 is blocked

4.7.4.2 VACUUM PUMP TIME-OUT

This is a time-out error, which occurs after the nominal vacuum time limit of 30sec. has been exceeded
or after a sudden deviation from the nominal vacuum. The error can also appear app. 30sec. after
turning the printer on.
• vacuum filter is dirty or clogged
• leakage in the vacuum circuit (tank R3, return connector, vacuum filter connectors)
• vacuum pump is broken, worn out or clogged
• pump driver modul broken
• RKM-board (V91 does not switch on; IC120 damaged)

4.7.4.3 VACUUM TRANSDUCER ERROR

This error can be caused by the following reasons:
• connector of vacuum sensor is not connected on socket LA10 of RKM-board
• vacuum sensor damaged
• RKM-board of EBS-6100 is installed in printer EBS-6200 without the wire connection (5 Volt supply
voltage of vacuum sensor)
• RKM-board of EBS-6200 is installed in printer EBS-6100. The software expects the output voltage
of vacuum sensor which is not there, of course.

4.7.4.4 Danger !! TOO HIGH TEMPERATURE IN ELECTRONIC COMPARTMENT -> CHECK THE
FAN AND CHANGE THE FILTER UNDER THE FAN
This error message is displayed with sound alarm when the temperature reaches 70°C on the power
supply.

22
5. Assembly of EBS-6100
5.1 Ink Circulation System

Vacuum Pump

Solvent Pump

Ink Pressure Pump

Pressure Stabilizer
Ink Pressure Sensor

R3

Main Ink Filter

Vacuum Filter

Functional description of components

5.1.1 Tank R3:
• Mixing tank of ink and solvent. Ink return from print head. Always under vacuum.
• Ink Level is monitored by a sensor with two active states: SB3 on  minimum level  supply of ink
or solvent ST3 on  error  Overfill R3
5.1.2 Ink pressure pump (12V DC motor, max. 6bar):
• Produces 2.7bar ink pressure in the ink circulation system and print head
• Pulse driven diaphragm pump, monitored by the ink pressure sensor (transducer)
• Operating voltage is limited to 7.5 Volt
5.1.3 Ink Pressure Sensor:
• Produces an analog output voltage from 0.5-2.5Volt by an effective ink pressure range from 0-4bar
• Controls the switching on and off periods of the ink pressure pump
5.1.4 Vacuum pump (12V DC motor):
• Produces vacuum in tank R3. Sucks the ink back from the print head to container R3.
• Cycle driven membrane pump. Nominal adjusted vacuum level is 20%.
5.1.5 Pressure Stabilizer:
• Consists of three separate chambers: Ink inlet, air cushion- and ink outlet chamber. The chambers
are separated with two membranes
• The ink flows through a small pipe (internal diameter = 0.5mm) from the inlet to the outlet chamber.
• Reduces the ink pressure fluctuation in the print head.
5.1.6 Solvent pump:
• Consists of an ink and solvent chamber, which are separated by one membrane.
• Cleans and rinses the print head, return- and ink tubes
23
5.2 EBS-6100 ink valves
5.2.1 EBS-6100 electronic section valves view

5.3.2 Location and functional description

Valve V0
• Print head’s ink supply valve
• The valve is active during the “Service” commands: V0 On/Off or Ink On/Off on keypad.
Valve V1
• Ink suction valve
• The valve is active during the switching on/off procedure and the “Service” commands: Clean
Nozzle, Fast Off, Ink Off
Valve V3
• Ink dosage valve
• The valve is active, when in tank R3 the level of ink reaches minimum (level sensor SB3 is on) and
viscosity is negative(<0)
Valve V4
• Solvent dosage valve
• The valve is active, when in tank R3 the level of ink reaches minimum (level sensor SB3 is on) and
viscosity is positive(>0)
Valve V5
• Solvent pump control valve. The valve releases the pressure from the ink chamber of solvent pump
• Active during switching on/off, refilling and filtering procedures
Valve V6
• Solvent pump control valve. The valve pressurizes the ink chamber of solvent pump
• Active during switching on/off, refilling and filtering procedure
Valve V81 (starting from printer no.:5xxxx)
• Print head’s solvent supply valve
• The valve is active during switching on and off procedures and the “Service” command Solvent
24
5.3.3 Manual activation of valves and pumps in EBS-6100

PRESSURE VAC V81 V6 V5 V4 V3 V1 V0

Manual activation of V6

The ink valves can manually be activated by a wire jumper.

Connect the ground contact to the corresponding solder joint of the valve. The associated LED
of the valve lights up and the valve turns open. Do not open the valve for a basic functional test
longer than a second. By this method it is possible to check whether a valve is blocked. Each valve
generates a “Click-Noise” at the moment of activation.

With the same procedure the ink pressure pump (PRESSURE) und vacuum pump (V91/VAC) can
manually be activated as well.

Caution:
The 24V supply contact is located very close to the solder joint of the valve V0.
Be aware of a shortcut while manually checking the valve V0 !!!

25
5.4 PRINCIPLE OF OPERATION EBS-6100

blowing pump head’s overpressure

system

~
air filter

HEAD
air blowing
gun
vacuum pump

pressure ~ 4
solv ent pump (R4)
nozzle filter

transducer
V4
V3
R3 3
5
pressure V5 V81
stabilizer
ST3 1
ov er

R3 V1
vapors outlet
SB3
PL3 PL4 3x1mm PL3
4 3 1 0
filter
V6 V0 INK SOLVENT V0
~
INK PUMP INK FILTER

0 V4 V3 V1 V6
V5
PL3 R3 5 PL3

valves unit

26
5.6 View of electronic section EBS-6100

Positive air pressure

adjustment potentiometer

Valve adapter LZ1

Pump driver module
MSP 6100R

Heads positive
air pressure pump

5.6.1 Valve adapter LZ1

The valve adapter has been introduced (from serialno 72973) due to breaks of the big lead
wires on the connection block LA4 on RKM-board. Additionally it was difficult to replace the
valve solenoids without special crimping tool. The leads of the electronic valves and the pump
controller are fastenend one by one to the to the LZ1 terminal.

5.6.2 Pump driver module

• The optocoupler circuit protects the CPU (RKM-board) against voltage peaks when
switching the pumps on and off.
• Transforms 24V DC to 8V DC and produces the operating voltage for the ink pressure-,
vacuum- and positive air pressure pump
• Electronic regulation (6V-12V) of positive air pressure in the print head

27
6. Print head status
6.1 GRAPHIC DISPLAY AND PRINTER STATUS WINDOW

Print head
status window

Operating window

The values of the head status window have the following meaning:

6.2 PHASING (first line: 3s7)

Explanation: The phasing is an automatic process of controlling the charging of ink drops. The
breaking point at which a continuous ink jet breaks into drops varies slightly, because of
viscosity changes in the ink. Therefore the control system needs to update the charging in
relation to the breaking off the drops continuously.

Phasing voltage on charging electrode during normal operation:

3.6ms Uphas=-6,5V
512µs
• A whole phasing process
0V
consists of 8 phasing
steps.
-6,5V
• In one phasing step 32
drops are charged with -
6.5V phasing voltage.
• Each good phasing step
produces an electrical
0V signal at the gutter.
• The signal at the gutter is
-6,5V amplified and the
software evaluates the
right moment of charging
16µs
the ink drops in relation to
512µs the drop break off.

28
6.2.1 Phasing digit "4" on the first line indicates the quality of phasing
It can vary in a range from 2 to 6 with 4 being the optimum.
A question mark ? which may appear at this position from time to time means wrong
measurement of phasing.
If the ? is displayed frequently or continuously, it means that the print head is tuned
improperly.
When a ? is displayed continuously it will result in a phasing error.

6.2.2 Second digit "r,s,v,p" on the first line (one character) indicates the head operation mode:

r (restart) the head operation has been restarted (no phasing, the printing disabled,
the READY lamp on the internal panel is off),

s (stop) the head is ready to start the printing (phase and ink viscosity are measured,
the READY lamp on the internal panel shows steady light),

p (print) the head performs the operation of printing as the result of the
START PRINT or PRINT SWITCH commands (high voltage is turned on, phase
and viscosity are measured, the READY lamp and the HV lamp on the internal
panel shows steady light),

v (service) the head is in service mode and enables the user to perform service
operations. The phase and ink viscosity are still measured, but the phasing error
alarm is disabled.

6.2.3 Third digit on the first line (one character) indicates the number of the best phase determined
during the phasing process.
This value can vary between 0 and 7. Variations of this digit more then one in a second
indicate that ink parameters are not stable (for e.g. ink is contaminated with oil or water).
Changes by ±1 for this parameter are normal.

6.3 VISCOSITY
The viscosity is indicated on the second line in the printer status window and is measured in
the print head by calculating the flying time of drops and it is given in relation to the nominal
value +00.

The principle of viscosity measurement is based on the simple fact, that thick (high viscosity)
ink flows slower than thin (low viscosity) ink. The viscosity is determined during the phasing
process and the reading is updated in each phasing process.

Positive numbers indicate that viscosity levels are higher than the nominal value and the
printer will add solvent next time.
Negative numbers indicate that viscosity levels are lower than the nominal value and printer
will add ink next time.

The correct viscosity values ranges between -05 and +15.

29
6.4 TEMPERATURE
The third line indicates alternately the temperature (°C) inside the head and in the electronic section
(only EBS-6200)

Temperature sensor
is located here

6.5 DROP CORRECTION TABLE

The fourth line (ending with “pix”) indicates the type of correction table (7, 16, 25 or 32 pix) used for
the current printed text after the START PRINT command has been selected.

30
7. SERVICE and MAINTENANCE
7.1 CIJ routine maintenance
The maintenance provided by the user consists mainly of periodical inspections and service operations to keep
the unit in good working performance. Some maintenance operations need to be done every day while others
after specified periods of time.

7.1.1 Daily maintenance:

• Check for proper level of ink and solvent in the bottles and prepare for new bottles to replace them
immediately, if necessary.
• After switching the unit on, check for correct adjustments within the print head by monitoring the indications
of viscosity and phasing on the terminal.

7.1.2 Periodical maintenance in EBS-6100 :

• Check after several switching off procedures or preferably every day whether the inside of the head is clean
and remove exsisting ink impurities from the gutter, nozzle and from the surfaces of the electrodes with a
solvent spray bottle or a soft brush.
• Replace the filters on time as it is recommended in chapter 7.2.1. - Replacement intervals of filters.
• Every 2000 hours of operation or at least once a year replace the ink.

Fehler! Verweisquelle konnte nicht gefunden werden.

spray

waste solvent
metal vessel

Note:
 Sharp tools or improper liquid may lead to print head damage when they are
used for cleaning or maintenance !

 The unit ought to be supplied only with ink, solvent and cleaner provided by the
manufacturer of the printer !

 Different types of inks must not be mixed !

31
7.1.3 Recommendation on how to split (share) the service-, maintenance- and repair
operations (workings)
Operator:
• Switch the printer on and off
• Clean the printhead
• Monitor the status window (phasing and viscosity readings) of printer
• Monitor the level and change the bottles (consumables)
• Set the printer in print mode and observe the printouts
Additionally if higher qualified:
• Text creation and text editing
• Cleaning the nozzle

Qualified personell (trained by EBS or EBS distributor):

• Periodical maintenance for e.g.: Replacement of all filters (nozzle, vacuum, air and main ink filter)
• Print head adjustments
• Changing the printing parameters
• Troubleshooting of simple malfunctions following the customers service guide

Supervisor (technical or production manager) of technical staff and operators

• Keep a service or maintenance plan of the printer(s)
• Evaluation of errors and malfunctions
• Contact person to the supplier or service point
• Monitoring of consumables stock and spare parts

EBS technician (or trained distributor technician)

• Annually maintenance
• Empty the ink system, rinse and refill the system with new ink
• Check all mechanical and electrical adjustments in the printer and print head

32
7.2 Filter types

2
1

5 6

7
8
4
3

1 - Main ink filter and vacuum filter

2 - Large capacity main ink filter in pigmented printer
3 - Air filter element under the cooling fan
4 - Nozzle filter
5 - Solvent suction filter in the Solvent bottle
6 - Ink suction filter in the ink bottle
7 - Ink suction filter insert in the ink bottle of pigmented printer
8 - Air filter from positive air pressure pump. (Installed only in printers up to serialno.:73223)

7.2.1 Recommended replacement intervals of filters:

Standard inks EBS-6100/EBS-6200:
4 - Nozzle Filter : 500 hrs P582825
3 - Air filter (fan) 1000hrs P580540
1 - Main Ink Filter : 1000 hrs P511296
1 - Vacuum Filter : 1000 hrs P511296
6 - Ink Suction Filter: 2000 hrs P510421
5 - Solvent Suction Filter: 5000 hrs P513500
8 – Air filter (pressure pump) 2000 hrs P511149
Pigmented inks in EBS-6100P/EBS-6200P:
4 - Nozzle Filter : 200-300 hrs P582825
1 - Vacuum Filter : 500 hrs P511296
3 - Air filter 1000hrs P580540
7 - Ink Suction Filter: 1000 hrs P582505
2 - Main Ink Filter : 2000 hrs N030201 + (2x N030202)
5 - Solvent Suction Filter: 5000 hrs P513500

Note:Under dirty (dusty) conditions the intervals of changing filters are more frequently.
33
7.2.2 Service Menu

SERVICE (C)
1 SERVICE

2 SUCK

3 V0 OFF

4 V0 ON

5 FAST OFF

6 INK ON

7 INK OFF

There is a special service password that 8 SOLVENT

makes the extended set of service
commands available.
9 SET INK STREAM

A STROBOSCOPE

B HV VALUE, PHOTO, SHAFT state

C SERVICE COMMANDS

Aut. Disp Txt : NO

D OTHERS
Zero Shape : NOT CROSSED
MACRO P.volt. : 10
Piezo voltage : AUTOMAT PASSWORD
High voltage : 3.40kV
Photodetector : Active Level D ADJUSTMENTS
Photodet.Edge : Falling
Phase : AUTOMAT
Charging volt : AUTOMAT
E EMPTY INK SYS
Stroboscope : DROPS
HV type : 4.5kV
Piezo freq. : 63kHz F CIRCULATE INK
Phasing volt. : -6.5V
Ink pressure : 2.7 bar G "STOP" MODE
Phasing ampl. : CARD
Phasing elec. : GUTTER H CLEAR M EMORY
Ink type : NORMAL.
Solv. check : YES
I ACTIVATE PASSWORD

J COMMAND PROCESSOR

K DO NOT USE (ME)

L DO NOT USE (SE)

M SERIALCHANNELS CONFIGURATION

N CHARGING DAC TEST

W FACTORY USE ONLY - I/S R-T O INK SYSTEM SERVICE

V SET FACTORY LIMIT P SWITCH THE POWER OFF

T CORRECTION PROGRAMM. Q WACHDOG TEST

S INK SYST. PROGRAMMING R SET TIME AND DATE

34
7.2.3 Brief explanation of service commands
SERVICE: Disables the phasing error detection and the subsequent V0 off - V1 on procedure. Should be
always selected when servicing the printer, especially during troubleshooting in the print head. The “v” is shown
in the status window.
CLEAN NOZZLE: Turns the ink flow in the print head off and starts a short activation of the suction valve V1.
The V0 valve restarts automatically. Use this command 2-3 times, if the nozzle is blocked (see chapter 6.4.1)
V0 OFF: Turns the print head’s ink supply valve off. The ink remains in the print head’s components. Use only
this command, if the nozzle filter is blocked and has to be replaced.
V0 ON: Turns the print head’s ink supply valve on again. The printer starts the run-up procedure at once. The
ready light starts flashing and the printer is in stand-by mode after app. 30sec.
FAST OFF: Turns the V0 valve off and activates the suction valve V1 for app. 10sec. The pressure in the ink
system is released by valves V5 and V6. This command can be used for replacement (repairs) of components
in the print head which take not not longer than app. 30min. for e.g. the piezo or HV electrode. Additionally it is
an introduction command of the “Empty Ink System” procedure and a closing off command of the “Ink System
Rinsing” procedure. (see chapter 11.)
INK ON: After using the commands FAST OFF; INK OFF and SOLVENT the ink stream can only be activated
by the command INK ON (not V0 ON). Another difference between V0 ON and INK ON is that, the ink
circulation system starts the complete switching on procedure (rebuilts ink pressure etc.) before the printer
returns in the stand-by mode.
INK OFF: This command initiates the complete switching off procedure and rinses the print head with solvent,
similar to the red “OFF” button on the keypad, but the printer stays electrically on and does not turn off. The ink
can be restarted only with INK ON. The command can be used for e.g.: If it is impossible to turn the printer off
the normal way or after short term runs. It is also a introduction command of the “Empty Ink System” procedure
SOLVENT: This command activates the solvent flow to the print head. The ink supply valve V0 switches off and
V6&V81 turns on. Use this command only for checking the function of the solvent pump (cleaning procedure) or
if the check valve in the head needs has to be adjusted (see chapter 7.1.6). If you use this commmand too long
or too often it may results in a dilution of the ink system.
SET INK STREAM and STROBOSCOPE: Special procedure to adjust the ink stream in the gutter. For detailed
explanation please see in User’s Manual, chapter 4.4.4.8.
HV VALUE, PHOTO, SHAFT STATE: see chapter 4.7.2.3
SERVICE COMMANDS: see next page
OTHERS: Set the Service password “E25PIX”. Now you have access to additional commands and the
ADJUSTMENTS command. The “Adjustment” window contains many other funtion and information about the
printers configuration. The most important settings are explained in chapter 7.
EMPTY INK SYS: The whole procedure is explained in chapter 11.
CIRCULATE INK: Similar command as “INK SYSTEM RINSING”. Can be used for air driven system.
“STOP” MODE: Disables the SERVICE mode. Reactivates the phase error detection.
CLEAR MEMORY: This command should be used if the printer software get stucked or the printer reacts
unexpectedly. Should be always carried out after a software upgrade. The whole text library and printing
parameters are deleted.
ACTIVATE PASSWORD: No funtion. Command is now in TEXT SERVICE
MEMORY&EXCEPTIONS: Do not use !!!
SERIALCHANNELS CONFIGURATION: Important command when communication to PC, PLC or external
devices for e.g.: scales, barcode reader, etc… is required
APPLICATION: Special Channel communication in 8BitASCII.
APPLICATION: Edgraf/Inknet communication with EBS user software or self created software following the
RS232 interface protocol
CHARGING DAC TEST: Checks correct function of Charging Digital-Analog-Converter.
INK SYSTEM SERVICE: see chapter 7.3.2
SWITCH THE POWER OFF: Only for special option “REMOTE”
WACHDOG TEST: Only relevant for EBS R&D
SET TIME AND DATE: Here the internal date (CPU date) can be adjusted. Do never set the date backwards !
FACTORY USE ONLY: Only relevant for EBS R&D
NEXT SERVICE VISIT DATE: see chapter 7.3.3
SET FACTORY LIMIT: This command enables a limited operation time of the printer. A limited operation time
(100hrs, 200hrs or 500hrs) can be set by EBS or on request from distributor, if a customer ignores the
obligation of payments.
CORRECTION PROGRAMMING: Loads the drop correction firmware (tkse.bin) file
INK SYST. PROGRAMMING: Loads of the ink system control firmware (flash.bin) file

35
7.3 Other important Service Commands
7.3.1 Menu “C SERVICE COMMANDS “

0 DISP. NEXT SERVICE VISIT

See chapter 7.3.3

1 CONVEYER MEASUREMENTS
This command allows to measure the actual speed from the factory conveyor. Place two objects (for
e.g.: white tape) on the conveyor at a one meter distance (1m). Run the conveyor with the white
tapes in front of the photo detector after the CONVEYER MEASUREMENTS command has been
selected. The result of the measurement is the actual travel speed (in meters/minute [m/min]) at
which the objects move in front of the print head.
The figure can be utilised directly or used to determine the setting for the Cnv spd m/min print
parameter.

2 INK FILTER CHANGE

See chapter 7.4.4 and 7.4.5 Replacing the main ink filter

3 PRINTER STORAGE PREPARATION

A three-item menu appears:
1 UP TO ONE WEEK The command initiates the regular mode of switching off.
2 UP TO 3 MONTHS A detailed description of the procedure is given in the User’s Manual
chapter 7.1 Storing the Printer.
3 OVER 3 MONTHS The following message is displayed on the terminal after this command
has been selected: Empty and rinse ink system with solvent according to Service Manual
instruction..Follow the instructions from the Service Guide (see chapter 11.) The procedure can
be followed exclusively by a serviceperson trained by the printer distributor.
The first two procedures above can be used by every user of an EBS-6100 printer, however
procedure 2 UP TO 3 MONTHS is more complicated than switching off in the regular mode and
requires additional accessories.

4 SWITCH OFF WITH V3 WASH

See chapter 4.7.3

36
7.3.2 Menu “O INK SYSTEM SERVICE “

1 SET INK PRESSURE command

adjusts the ink pressure parameter to the required value (max=110%). This parameter is not stored in
the memory but the value is automatically restored to 100% each time the printer is switched on. The
value of 100% corresponds to the pressure of 2.7bar. The ink pressure can be in- or decreased in
order to perform service operations.

2 SET VACUUM command for EBS 6100

adjusts the vacuum to the required value (in %). Nominal value is 20%.
The range is between 10%-25%.
An adjustment of vacuum parameter over 30% level might cause an INK PRESSURE DROP
Note: The vacuum parameter value is only stored at the last step of normal switching off procedure.
The emergency switch off (main switch) does not save the last adjusted parameter.

SET VACUUM command for EBS 6200 please see chapter 4.7.1

3 FILLING OF EMPTY INK SYSTEM command

refills the ink system with ink. The level sensor SB3 in tank R3 must be active.
The procedure doesn’t start automaticaly, therefore the filling up has to be activated instantly after the
HV-test has been finished . The ink suction valve V3 opens several times to refill the system with ink.
After that the valves V5 und V6 are alternately on with valve V3 in order to remove the air out of
system and fill up the system with ink. The procedure is finished, when the level sensor SB3 switches
off. Thereafter the unit starts the normal switching on procedure. (see chapter 12.1.3)

4 CHECK VALVE ADJUSTMENT command

See chapter 8.1.6 Adjusting the non return valve in print head

5 INK SYSTEM RINSING command

Before using command INK SYSTEM RINSING install a pipe between the gun and the gutter. The
command reduces the pressure from 100% to 9% (app. 0.2bar).
Let the printer run in this mode for at least 30 minutes. The ink circulates in the ink system so that
impurities are captured in the main ink filter (see chapter 12.1.2).

37
7.3.3 Menu “X SET NEXT SERVICE VISIT DATE“
Since software version 21_6a the command X SET NEXT SERVICE VISIT DATE is added. When
this command is selected, 4 lines are displayed:

LAST SERVICE VISIT: Type in here the current service visit date: dd.mm.yy where dd is
for day, mm is for month, yy is for year (example 21.11.09).

NEXT SERVICE VISIT: Type in here the date of next planned service visit: dd.mm.yy where
dd is for day, mm is for month, yy is for year (example 21.11.10).
In case the date of next service should not be checked – type in here a distant date (for
example 21.11.99)

WORK TM TO NEXT VISIT: Type in here the number of work hours (it means hours when
the printer is switched on) to the next planned service visit (maximum 20000 hours). If the
value here is 0, the printer will not check how many hours is left to next planned service visit
but checks the date of next planned service visit.

WORK TIME LEFT: displays the remaining value of work hours to next planned service visit

When reaching the date defined in above mentioned line NEXT SERVICE VISIT, the printer displays
message: SERVICE VISIT REQUIRED. CALL YOUR LOCAL SERVICE PLEASE.

When time defined in line WORK TM TO NEXT VISIT expires, the printer displays message:
SERVICE VISIT REQUIRED. CALL YOUR LOCAL SERVICE PLEASE.

NOTE: The above mentioned message is displayed just after switching the power on. When
cancelled with <Enter> key, the message disappears until next power on (unless above defined
parameters are changed)

The factory default setting is 2100h and 15 month.

In menu 4 SERVICE, submenu C SERVICE COMMANDS command 0 DISP. NEXT SERVICE VISIT
DATE is added. When selected, 3 lines are displayed, but the values are read only (can not be
changed here):

LAST SERVICE VISIT: displays the date of previous service visit: dd.mm.yy where dd is for
day, mm is for month, yy is for year

NEXT SERVICE VISIT: displays the date of next planned service visit: dd.mm.yy where dd
is for day, mm is for month, yy is for year

WORK TIME LEFT: displays the remaining value of work hours to next planned service

38
7.4 Important service and maintenance procedures
7.4.1 Cleaning and handling of nozzles
Perform the following steps:
1) Carry out 2-3 times the command 2 CLEAN NOZZLE in service menu. In the moment
when PV1 is active spray cleaner on the nozzle’s ruby.
2) If after several attempts still the ink stream doesn’t leave the nozzle straight, select the
command 5 V0 OFF in order to stop the ink flow.
3) Loose the two screws which fix the insulator of the charging electrode and turn the
charging electrode aside.
4) Unscrew the nozzle carefully using the small special spanner and spray the nozzle from
both sides with a cleaner. It is also possible to clean the nozzle in an ultra sonic device
(See 6.4.2 on next page)
5) Blow the nozzle carefully with compressed air in the opposite direction to the ink flow.
6) Select the command 4 V0 ON for a few seconds to let some ink flow out at the end of the
piezo’s thread. Now (after 4-5 sec.) select 5 VO OFF again. Clean the pint head with
solvent and dry it with positive air.
7) Screw the nozzle on the piezo, ensuring that you do not overtighten the nozzle. The
nozzle’s ruby and the piezo can be damaged !
8) Turn back the insulator of the charging electrode and fasten the two screws.
9) Select the 4 V0 ON command to activate the ink flow to the head. Now the ink jet is
aligned and the printer will be phased properly in about 30 seconds.
NOTE: Nozzles for pigmented inks are different to the standard ones.
Pigmented nozzles are marked with „6 P”, standard nozzles with „6” only.
UNSCREW IN THIS DIRECTION
CHARGING ELECTRODE

NOZZLE

Unscrew the nozzle with small

spanner

39
7.4.2 Cleaning the nozzle in ultrasonic device

The used nozzles in EBS printers can be cleaned in ultracsonic devices, because the nozzle’s ruby is
not fixed by glue. The ruby is pressed in the nozzle socket and fixed by a flanging press.

Clean the nozzle as shown in the photo for about 5 minutes in the ultrasonic device

40
7.4.3 Replacing the Nozzle Filter
NOTE: The filters must not be replaced directly after:
• switching the ink stream off with the INK ON/OFF key on keypad,
• executing the service commands: CLEAN NOZZLE, FAST OFF or INK OFF
• switching off in the regular mode (with rinsing).
• occurring a Phase error
It is advisable to activate the Service mode and wait until impurities have returned to the filter again.
Replace the nozzle filter inside the piezo by following the steps below:
1) Select the 3 V0 OFF command to stop the ink flow to the head.
2) Unscrew the nozzle, clean with solvent and keep it in the door of the electronic section.
3) Unscrew the connection from the ink supply pipe and take out the pipe from the filter holder.
4) Unscrew the filter holder, remove it from the piezo and rinse with solvent.
5) Remove the nozzle filter from the filter holder and insert a new one in the proper direction.
6) Assemble the above mentioned parts in the reverse order. Wait for installing the nozzle.
7) Select first command 4 V0 ON and rinse the piezo to remove impurities or dry ink, which might
be still present in the piezo or on the piezo’s thread. Stop the ink flow after 5 sec. using the
command 3 V0 OFF and clean the print head especially the thread of the gun.
8) Now screw the nozzle on and start the ink stream with command 4 V0 ON

open spanners size 4 and 8

FILTER
HOLDER

Ink
supply
tube

Nozzle Filter

41
7.4.4 Replacing the main ink filter in EBS-6100

Replace the main ink filter by following steps:

• Place an absorbing cloth under the filter and prepare a vessel.
• Rinse the new main ink filter with solvent before you install it.
• Select the 2 INK FILTER CHANGE command from the C INK SYSTEM SERVICE submenu of the
SERVICE menu:

The following message is displayed:

FILTER CHANGE START,
WAIT FOR NEXT MESSAGE,
• Wait on the printer and perform no operations until the following message is displayed:
Change ink filter now.
AFTER change press <enter> !!!

42
• Unscrew the ink filter outlet connector 1 from the ink pump.
• Lift the angle connector at the filter input (IN) above the ink level in the R3 container and unscrew
the nut.
Note: The filter body and tube is filled with ink and this ink runs out in the moment you disconnect
the filter inlet. Deposit the old filter in the vessel. Do not lower the supply tube connector below the
R3 ink level.
• Screw the angle connector (IN) of the new main ink filter in the supply tube connector you are
holding up.
Note: The proper filter direction (INLET marking) on the filter body should point to tank R3.
• Connect the outlet connector of the main ink filter to the inlet of the ink pressure pump.
• Only if all service operations have been completed the ENTER key should be pressed. Then the
following message is displayed:
FILTER CHANGED, Ink will be switched on !!!!!, ARE YOU SURE ? (Y/N)
• After you have confirmed with (Y), the filter replacement is finished, the printer needs a few
minutes to get back to the ready state and the following message is displayed:
WAIT 4,5 minutes, the end of the process is indicated with
END OF FILTER CHANGE message on the display
Note: The nuts and corresponding gaskets are original components of the ink pressure pump and
must not be replaced with other components. This may cause a lack of tightness in the ink system.

7.4.5 Replacing the main ink filter in EBS-6200

The procedure of changing the main ink filter in EBS-6200 is the same as in EBS-6100. The only difference is
the filter outlet don’t need to be unsrcewed on the pump, but on the inlet (1) of the angle connector.

R3

Ink level

This sleeve must be
replaced with a new
one each time the ink Main ink filter
filter is changed !!! 
 OUT

IN

43
7.4.6 Air filter element under the cooling fan
In the upper door of the printer under the cooling fan an additional filter element is located.
During operation of the printer the cooling air for the electronic boards is being sucked through the
filter.
Every time when maintenance or service is required, the filter element should be checked and
replaced if necessary.

Under normal operating conditions the filter element should be replaced every 1000h of working time.

The amount of blockage depends mainly on the conditions in the vincinity of printer. In wood and
paper industry the ambient air often is full of dust particles, which can block the filter rapidly. Under
such rough conditions, the filter element must be replaced every 200h of working time.
The blockage of the fan filter element causes an excessive temperature rising inside the electronic
section and can result in a damage of electronic components on the power supply.

7.4.6.1 Fan filter element view

filter element P580449 filter element after use

44
7.4.6.2 Replacing the air filter element

The replacement procedure consists of the following operations:

1) Switch the printer off.
2) Open the electronic chamber door with a key
3) Unscrew two screws 1 and 2, which hold down the fan in the electronic chamber door
4) Pull the fan 3 together with its casing 4 (attached to the fan) and filter element 5 out of the
electronic chamber door. The direction of pulling is shown in the drawing above. While performing
this operation make sure that no wires are damaged
5) Disconnect the fan supply plug 7 for an easier access to the filter element
6) Remove the clogged filter element which is located at the bottom of the fan casing
7) Remove the remains of adhesive from the fan casing with a sharp tool
8) Remove the protective strips 6 from the pressure-sensitive adhesive tapes of a new filter element
9) Stick the filter element to the bottom of the fan casing making sure that the element holes are in
the places where the screws 1 and 2 are screwed in (as shown in the drawing)
10) Place the fan together with its casing and the new filter element back on the electronic chamber
door
11) Screw the holding down (screws 1 and 2)
12) Reconnect the fan supply plug 7 and start the printer.

45
7.4.7 Replacing the vacuum filter
7.4.7.1 EBS-6100

Replace the vacuum filter by following steps:

1) Select in SERVICE meu command 5 FAST OFF, wait 30 sec. and clean the print head.
2) Unscrew the nuts 1 and 2 while holding the filter coupling 3 at the same time.
3) Replace the exsisting air filter with a new one.
4) Assemble the components in the reverse order
5) Switch the ink stream on again with service command 6 INK ON.

7.4.7.2 EBS-6200
Replacement of vacuum filter in EBS-6200


air filter
air filter

main ink filter  

46
 8. ADJUSTMENTS AND CALIBRATION
8.1 Print Head

8.1.1 Dimensions – Default settings

min. 2 int =0 int - for a standard gutter Ø 1,5

≤ 0 int - for gutter Ø 2,0

9 mm

>0.9 int Y=6.5 int

min. 1 mm
46 mm min. 0.5 in t

8.1.2 Adjusting the position of the (HV) deflecting electrode

1.) Loosen the adjustment screws which fix the HV electrode.

2.) Adjust the electrode under the microscope according to the dimensions in the drawing.

3.) The distance Y should be at 6.5 of the intervals of the microscope scale.

Note: 1 int. = 0.25 mm

4.) The electrode position can also be adjusted by a special service spacer in the following way:
Loosen the two white plastic screws. Place the gauge under the electrode and press the
electrode down. Tighten the screws carefully to fix the HV electrode.

47
8.1.3 Adjusting the position of the Charging Electrode

ADJUSTMENT
SCREW CHARGING ELECTRODE

CHARGING ELECTRODE

NOZZLE 10
9
8
7
6
5 H2
H1
4
3
2
1
0

MICROSCOPE WITH A SCALE AND A STROBOSCOPE

H2 =H1
The vertical position of the charging electrode can be adjusted under the microscope with an
allen adjustment screw. Adjust the position of the electrode to make the ink jet pass the
charging electrode plate at the distance of one scale interval.

NOTE:
Make sure that the charging electrode is parallel to the ink stream. If not, bent the electrode
gently so that the distance at the beginning and the end of the electrode corresponds to
H1=H2=0.9÷1.0 int. of the microscope scale.

48
8.1.4 Adjusting the ink-jet path

Horizontal. Vertical.
(
)

V4 SCREW SLEDGE

H SCREWS CHARGING
DEFLECTING
ELECTRODE ELECTRODE GUTTER

SLEDGE
I

x >0.9

ink jet
PLATE V3 SCREW V4 SCREW

8.1.4.1 Horizontal:
Loose the H screws and observe the gutter inlet from top, move the piezo left or right in
horizontal direction so that the position of the ink jet is aligned exactly in the middle of the
gutter. By tightening the H screws pay attention to the ink jet keeps the correct position. Hold
(fix) the filter holder between thumb and forefinger while turning the screws.

8.1.4.2 Vertical:
The path of the ink jet in relation to the immovable gutter can be adjusted with the V3 and V4
screws in vertical direction. If you drive in the screw V3 the ink jet goes down in the gutter. If
you drive the screw V4 in the ink jet goes up in the gutter. Do the alignment with both screws
alternately, so that the plate is always fixed and the ink jet hits the gutter in the upper third at
point C as shown in the drawing below:

DEFLECTING ELECTRODE
A

PRINTING
B

0
1
neutral 2
3
ink-jet 4 C
5
6
7
8
9
1
0
MICROSCOPE GUTTER
SCALE

49
8.1.5 Adjusting the Breaking Voltage

CHARGING ELECTRODE

123 14
NOZZLE

Connect the microscope(stroboscope) to ST15 on RKM1-4 board

stroboscope connector

Note: The adjustment of breaking point should be performed only when the viscosity is in
proper range: -05 - +10

Perform the following steps:

1.) Move to the SERVICE menu – D OTHERS - set service password, ADJUSTMENTS:
2.) Set the PIEZO VOLTAGE parameter to value 128 and press <Enter>.
3.) Move the cursor to the MACRO P.volt parameter.
4.) Counting from the nozzle side, set the 14th drop as the first one to be broken off from the
ink jet.
5.) Follow the adjustment procedure in the two steps described below:
• Using the left-arrow key, reduce the setting of the parameter MACRO P.volt to 0.
• Using the right-arrow key, increase the setting of the MACRO P.volt parameter.
• Press the key so long as the 14th drop breaks off from the continuous ink jet.

50
 6.) Check whether the value of the parameter MACRO P.volt meets the following condition:
- 55> MACRO P.volt >3..for standard inks,
- 68> MACRO P.volt >3..for pigmented inks.
If the conditions are not met, the piezo or the nozzle should be replaced.
On completing the adjustment, trigger the PIEZO VOLTAGE parameter to AUTOMAT by
pressing the A key and then <Enter>.

7.) Additionally, you can check whether the breaking voltage meets the condition:
16[V]>Upiezo>1[V]. The amplitude of the breaking voltage should be measured with an
oscilloscope at test point PP3 on RKM board or directly on the gun connector.

Note:
In pigmented printers the breaking point can also be adjusted on the 15th drop.

BREAKING VOLTAGE CONNECTOR

View of breaking point under the microscope

Too low Too low

amplitude amplitude

Right Too high

amplitude amplitude

51
8.1.6 Adjusting the non-return valve in print head

In order to adjust the check valve in print head use the command 4 CHECK VALVE ADJUSTMENT
in service menu O Ink System Service:

1. Start the printer and wait until V0 is active, then execute command 5 FAST OFF
2. Unscrew the check valve adjustment screw, take out the internal parts (spring, valve head, o-
ring) and preferably clean them in a ultrasonic bath.
3. Install the parts in reverse order. Turn the adjustment screw only one turn in the t-connector.
4. Now select the command 4 CHECK VALVE ADJUSTMENT.
Note: The command 4 CHECK VALVE ADJUSTMENT reduces the pressure automatically
from 100% to 39%. This value is equal to the pressure of 1.1bar.
5. The solvent stream turns on. Screw in the adjustment screw slowly for so long until the
solvent stream gets unstable and stops.
6. Now screw off the adjustment screw slowly, until the solvent stream is stable again and
reaches the gutter.
7. Immediately set command 6 INK ON to stop the solvent flow and to reactivate the ink stream.
Note: Do not execute the CHECK VALVE ADJUSTMENT command too long. The ink system
may get stongly diluted.

T-CONNECTOR

s
I

or
SCREW FOR
ADJUSTING THE
CHECK VALVE

SPRING
O-RING

VALVE HEAD

T-CONNECTOR

52
8.2 ELECTRONIC ADJUSTMENTS
8.2.1 Adjusting the Charging Voltage

Layout of measurement points and potentiometers for tuning RKM-cards versions 4 or later
0V LEVEL
STROB
ST 15 ST 11

LED1

GND

CA1 AMPLITUDE

IC119
P3

IC102

EP FL
IC101
IC 10

ST20

LED2 IC2
RKM1-4
IC5 L1-T OP
IC8

IC100

IC 122

L A8
IC1

Z12 GND

P8
PP4
P7
PP3 GN DA

check point PP3

Note: All measurements of voltage need to be performed using a digital voltmeter, DC range.

Set to 235.5V

Set to -6.5V
Test point

To adjust the charging voltage, perform the instructions given below:

1.) Move to SERVICE menu – D OTHERS - set service password and ADJUSTMENTS:
2.) Connect the voltmeter between the earth (GND) and charging electrode
3.) Set the Charging volt parameter from AUTOMAT to -6.5V using the right arrow keys and
adjust the voltage to - 6.5V with the potentiometer CA1
4.) Set the charging voltage to +235.5V and adjust with P3 the accurate value of 235.5V.
5.) Finally check the charging voltage at 0.0V to make sure that the setting is 0V + 0.1V
6.) If necessary repeat the last steps to adjust the charging voltage properly in all three values.
7.) Leave the adjustment of Charging volt in setting the value back to AUTOMAT

53
8.2.2 Phasing and Test Signals

8.2.2.1 Phasing voltage on charging electrode during normal operation

3.6ms Uphas=-6,5V
512µs

0V

-6,5V

0V

-6,5V

16µs

512µs

8.2.2.2 Gutter signals test points

[mV] PHASING SIGNAL AFTER CLIPPING - test point PP7 [mV] PHASING SIGNAL FROM GUTTER - test point PP8
400 400

200 200

0 0

-200 -200

clipping clipping
-400 level -400 level

-600 -600

0 5 10 15 20 25 30 35 40 45 [ms] 0 5 10 15 20 25 30 35 40 45 [ms]

54
8.3 Checking the charging impulses with an oscilloscope
The exsistence and quality of charging impulses can be checked with an oscilloscope directly on the
charging electrode while the printer is printing a text in continuous mode. If the charging impulses
looks like as shown on the screen of oscilloscope (see photo below) it means the RKM-board,
AMPF300B and drop correction program (tkse.bin) is working properly.

Printing a row of “E” using a

HF probe head on divider
setting x10; Osc. settings:
Volts=5/Div; Time=5ms/Div

8.4 Adjusting the positive air in print head

The positive air in the print head avoids that dust and humidity penetrates inside the print head.
If the positive air is too weak dust may be sucked into the gutter and contaminates the ink or water
condensation may occur on the gutter which results in a phasing error. Adjust the positive air blow as
follows: Direct the head’s positive air outlet towards your mouth and turn the poti so long as you can
feel a slight blow of air on your lips.

Poti for positive air

pressure adjustment

Heads positive
air pressure pump

I
Note: If the air blow is too strong it may result in a deterioration of printing.

55
9 PIGMENTED INK SYSTEMS EBS-6100P and EBS-6200P
9.1 General information
In the main, the construction of the new pigmented ink system is based on the standard EBS-6100,
EBS-6200 ink system. In order to handle pigmented inks and to minimise the sedimentation of the
pigments, the following modifications have been made:
• Mixing tube in the container R3
• Special ink bottle suction tube
• New type of main ink filter
• Nozzle filter in print head
• Modified ink control program (firmware)
The average solvent consumption amounts to 180hrs - 250hrs per litre of Solvent.
The time credit of the solvent transponder is limited to 360hrs of working time.

9.1.1 Ink system view EBS-6100P

new type of
main ink filter

9.1.2 Ink system view EBS-6200P

new type of
main ink filter

56
9.2 Modifications in the ink system of EBS-6100/EBS-6200

9.2.1 Large capacity main ink filter

The „depth filter structure” and 10µ-20µ removal rating of the new capsule-type main ink filter make it
possible to use pigmented inks even in the electrical systems. The internal asymmetric filter element
structure provides absolute rated filtration and long life cycles.

9.2.2 Installation of a nozzle filter

The characteristics of the new large capacity filter allows to use nozzle filters even in pigmented ink
systems. In the previous printer versions the nozzle filter in combination with the standard filter gets
blocked too fast. Additionally the starting performance has been improved in comparison to the air-
driven EBS-6000P model.

9.2.3 Circular tubing insert in tank R3

The ink return tube inside the tank R3 is replaced with a

special tubing ring. Tiny holes are evenly spread
over the perimeter of the tubing. The vacuum in tank R3
produces air bubbles through these holes.
Thereby the bubbles keep the pigments in motion and avoid
sedimentation on the bottom of tank R3
return

R3

57
9.2.4 Special ink suction pipe for the ink bottle

At the three-connexion ink suction pipe a new designed bottle

filter holder is installed. The bottle filter holder is equipped with
small drill holes which are connected to an additional pipe.
This pipe is connected via the solvent bottle to the outlet air of
the vacuum pump.
The cyclic outlet air of the vacuum pump at the end of the
suction pipe generates turbulences, so that the ink is
permanently mixed in the bottle.

The vacuum pump turns to continuous operation the moment

the printer needs ink. This results in perfect mixing of the
pigments around the ink bottle suction pipe the moment the
systems needs to add ink.
V3
exhaust outlet Solvent bottle

Ink

9.2.5 Installation of a connection pipe between the ink- and solvent bottle

The solvent saturated outlet air from the vacuum pump is regained first in the solvent bottle. An
additional connection tube between the ink and solvent bottle transports the positive air from the
solvent bottle to the inlet of the ink bottle suction pipe and supplies positive air to the pipe’s end. The
vapour outlet on the printer housing is connected to the ink bottle instead of to the solvent bottle as in
standard EBS-6100/EBS-6200.

Note: Both the ink and the solvent bottle screw joints must be well tightened.

connection pipe

58
 9.3 Circuit diagrams of pigmented ink system
9.3.1 EBS-6100P

blowing pump
6820010
air filter
~
HEAD
air blowing
gun

vacuum 4
pump ~ nozzle filter

Solvent
pressure V4 pump (R4)

transducer V3 V81
R3 3
5
V5
pressure
stabilizer over 1
V1 vapours outlet
R3
SB3

filter
V6 V0 INK SOLVENT PL3 PL4 3x1mm PL3
~ Ink filter
4 3 1 0
ink pump
0 1 V0
1 1 1

V4 V3 V1 V6
V5 1
1
PL3 R3 5 PL3

valves

9.3.2 EBS-6200P

blowing pump
6820010
air filter
~
vacuum HEAD
pump air blowing
gun
vacuum
transducer 4
~ nozzle filter

Solvent
pressure V4 pump (R4)
transducer V3
R3 3
V81
5
V5
pressure
stabilizer over 1
V1 vapours outlet
R3
SB3

filter
V6 V0 INK SOLVENT PL3 PL4 3x1mm PL3
~ Ink filter
4 3 1 0
ink pump
0 1 V0
1 1 1

V4 V3 V1 V6
V5 1
1
PL3 R3 5 PL3

valves
59
9.4 Service and Maintenance of EBS-6100P/6200P
9.4.1 Routine maintenance
Due to the special chemical characteristics of pigmented inks, some extra routine maintenance is
required in the pigmented systems:
• Ink residues in the print head should be removed by using a solvent soaked soft brush.
Especially the undersides of both charging and HV electrodes, the gutter and the print head
chassis should be cleaned regularly.
• The ink bottle should be shaken once a week, even though there is a mixing function.
• The replacement intervals of some filters are shorter as in EBS-6100 standard models.

9.4.2 Recommended filter replacement intervals

Nozzle filter : 300 hrs
Main ink filter : 2000 hrs
Air/vacuum filter : 500 hrs
Air cooling filter (fan filter): 1000 hrs
Ink suction Filter: 500 hrs cleaning (Replacement together with the main ink filter)
Note: Under dirty (dusty) conditions the intervals of changing filters are more frequent.

9.4.3 How to replace the large capacity main ink filter

After replacement of the large capacity ink filter the ink system and filter have to be replenished
manually. Perform the following steps:

• If the ink system is entirely empty turn

the printer on and go immediately to
Service command „Filling Of Empty Ink
System”. The ink suction valve V3 gets
active and fills the tank R3.

ink level • Observe the level sensor SB3 led on

RKM-board. When SB is off, turn the
printer off in service mode or on the main
power switch.

• Place the filter underneath the bottom of

tank R3.

• Open the filter’s vent screw.

• Detach the vacuum connector on the top

of tank R3 to enable the ink flow towards
the filter.

• The filter fills up slowly by gravity.

.
detach vac
connector

60
 • Close the vent screw as soon as the ink
level reaches the junction.
• Turn the printer on again and select
immediately the command „Filling Of
Empty Ink System”. The valve V3 opens
and the tank R3 is replenished with ink
ink level
again.
• When the level sensor SB3 turns off, the
starting procedure follows and the ink
pressure pump turns on and the ink
stream starts after one minute.
Note: It might happen that the error message
“Ink Pressure Drop”, “Ink Pump Time Out” is
shown after app. 30sec. In this case proceed
with the following steps:

• Stop the ink stream with FAST OFF

command, wait 30sec., thereafter turn
the printer off on the main power switch.
• Detach the stabilizer and disconnect the
inlet tube.
• Connect a syringe to the tube and pull
the syringe until the syringe fills up with
ink.
• Remove the syringe, connect the tube to
the stabilizer and reattach the stabilizer.
• Start the printer again and select once
again the command „Filling Of Empty
Ink System”.
• The ink pump’s supply tubes are filled
with ink and the pump should start and
pressurize the ink system by itself.
• Shortly after the ink stream has been
activated, let the ink circulate without
nozzle filter for approx. one hour using
the service command „Ink System
Rinsing”. (see chapter 12.1.2)

61
10. ERRORS and MALFUNCTIONS
10.1 Classification of errors
The errors are classified as follows (some examples of errors and warning messages):

10.1.1 ERRORS which stop the operation of the printer immediately

• PHASE ERROR
• R3 OVERFILLED
• INK PRESSURE DROP
• MAX INK PRESSURE EXCEEDED
• HV-ERROR**
• IDENTIFIER ERROR

10.1.2 WARNINGS which don’t stop the operation of the printer

with sound alarm:
• EMPTY BOTTLE, NO BOTTLE (after 30min. printer stopps)
• OPEN V0 OR THE PRINTER
WILL BE SWITCHED IN 1 MIN. OFF !!! (after 15min. printer stopps)
without sound alarm:
• NO VISCOSITY MEASUREMENTS
• +24V ERROR!!
• HEAD TEMPERATURE TOO HIGH !!

10.1.3 The warnings that are displayed in the printer status window:
• Der (drop error)
• Ter (temperature error)
• Ovr (overdrive on shaftencoder input)

Note: This list is not complete. There do exsist many more error and warning messages. The most
important ones are explained in the next chapters.

62
10.2 Error processing principle
When a problem occurs, do not clear the alarm directly, but try to collect all information. Take a piece
of paper and write down:

• The error messages displayed in the main (menu) window

• The error messages displayed in the printer status window
• The status of all lamps on the RKM- board indicator.

If you cannot handle the error, additionally write down the following:
• All details of the error (what is wrong, all printing parameters, the printed text and its
parameters, etc.)
• What action you have taken and what are the results
• The printer type (e.g. EBS-6200P)
• The printer’s serial number
• The software version – see the AUX.Commands and OPTIONS menus – all position

Send all this information to your service point (distributing company).

Note: If you have your PC or Laptop on hand, create a report.txt file using the Raport.exe program.
Send this file by e-mail to EBS together with the detailed error description mentioned above. The EBS
service will support you asap.

63
10.3 TROUBLESHOOTING

10.3.1 PHASE ERROR

Meaning: The system cannot find the proper phase for charging the drops.
Panel indications: The red PH.ERR lamp on the internal panel flashes regularly.
Type of alarm: A failure which stops printing
Signalling: PHASE ERROR message on the terminal display, sound alarm, LED
indicator on the RKM card and the Per message in the printer status
window.

Error causes and handling procedure

1.) Print head or gutter are dirtied by ink

• Clean the print head, especially the area of gutter.

2.) No ink stream in the print head, the nozzle is clogged partially or completely
• Clean the nozzle (see 7.4.1 Cleaning and handling of nozzles)
• If the nozzle is free, but no ink flows from the piezo’s thread, disconnect the ink supply
tube from the gun (V0 is off).
• Turn the valve V0 on and check whether ink flows from the ink supply tube. If not it
means that the ink supply tube is blocked or the valve V0 is damaged.
• Disconnect the ink supply tube from the inlet of V0 valve. Connect a syringe filled with
solvent on the ink supply tube. Try to push the solvent through the 4m tube in direction
to the print head. Leave the filled tube for a while in order to dissolve the dry ink which
blocks the tube. Thereafter apply positive air pressure on the tube.
• Dismantle, clean or exchange the valve V0.

3.) Misalignment of the ink stream (in consequence the head may be flooded with ink)
• Adjust the ink stream in horizontal and vertical position correctly.
(see 8.1.4 Adjusting the ink jet)

4.) Viscosity is out of range (below -20 or over +30)

• Nozzle filter is blocked; change the nozzle filter.
(see 7.4.3 Changing the nozzle filter)
• V0 does not open properly. Dismantle the valve, open and clean it.
• V1 does not close properly. Dismantle the valve, open and clean it.
• Pressure stabilizer is partially blocked. Dismantle the stabilizer and clean, especially
check the small metal pipe between the in- and outlet chamber.

5.) No or incorrect breaking of drops, bad shape of drops, breaking point is not
placed under the charging electrode
• Check and adjust the correct breaking point at the 13th -14th drop. (see 8.1.5 Adjusting
the breaking point)
• If a correct adjustment is impossible or the drops are deformed check the nozzle. The
nozzle may be broken or partially clogged. Clean or exchange the nozzle
• The viscosity of the ink is out of range.
• Break or shortcut in the piezo supply cable or connector (socket) of the piezo.
Check the cable with an ohmmeter, remove shortcut or exchange the cable.
• No piezo supply voltage applied on the piezo. Check sine voltage range: Upp:2V-16V
on PP3 of RKM-board with an oszilloscope.
Break or shortcut in the piezo supply cable or connector G6 on RKM-board.
• Piezo supply circuit on RKM board damaged.
• Breaking point unstable, because of damaged shock absorber foil under the piezo.
Phasing error occurs intermittently
• The piezo is damaged. Replace the piezo.

64
 • Improper ink type or contaminated ink. The ink stream can not be broken into drops.
Empty and rinse the ink circulation system and refill with new correct ink. (see 12.
Empty Ink System)

6.) No or improper phasing signals on charging electrode

• Phasing voltage –6.5V of AMPF300B is wrong adjusted or not present.
• Adjust the correct phasing (charging) voltage of AMPF300B with multi meter.
(see 8.2.1 Adjusting the Charging voltage)
• AMPF300B damaged, exchange AMPF300B.
• 300V constantly on the charging electrode: AMPF300B or drop correction program
damaged. Replace AMPF300B. Load the tkse.bin file once again.
• IC’s 14,15,16 or 17 on RKM board are damaged.
• Break in W2/G2 or in the connector panel of charging electrode. Check with ohmmeter.

7.) No, improper or disturbed phasing echo signal on gutter

• The phasing sensor connector on gutter is not connected or bad contact because of
dry ink (transitional resistance).
• Break or shortcut in the gutter cable from W4/G4 on RKM-board. Check with
ohmmeter between gutter and W4/G4.
• Break in the screen of gutter cable between the metal screw joint (connection to return
tube) and ground socket of W4/G4. Check with ohmmeter between metal screw joint
and ground socket of G4.
• The gutter is damaged
• The gutter cable is leaded in the wrong position.
• The shields in print head are not installed.
• Strong electrostatic fields nearby the head.
• The ground (earth) of printer, conveyor and mains supply is not performed correctly.

8.) Ink is contaminated or the chemical structure is bad

• Empty and rinse the ink circulation system and refill with new ink.
• (see 12. Empty Ink System)

9.) Vacuum is too low – Gutter overflows with ink

• (see 10.3.4 NO VACUUM)

10.) RKM board damaged

• Electronic circuit for amplifying the gutter signal is damaged.
• Supply voltage for piezo is not generated.
• Drop correction program (tkse.bin) is damaged or installed wrongly.
• -6.5Volt phasing voltage is not generated.(AMPF300B, IC14, IC15, IC 16, IC 17)
• Replace the RKM board.

11.) The air blow inside the head is not sufficient

• Water condensation on the gutter. (water drops on the gutter short the phasing signal)
• Adjust the positive air pressure correctly (see 8.4 Adjusting positive air in print head)

NOTE: If the Phase Error occurs in the moment the high voltage switches on ( print mode)
it can be one of the following reasons:
• Misalignment of the ink jet path in relation to the gutter inlet position.
• Problems with the head casing which presses the gun and deflects the ink jet.
• High voltage earth fault inside the head due to the following: Dirty print head, thick
layer of dry ink on the HV electrode

65
 flowchart
PHASING ERROR

1. The head cover presses down the YES Is the error detected
HV electrode. only when the head
2. Air blow to the head is too strong. cover is on?

NO

1. Air blow to the head is too strong.

2. Check the ink jet alignment in the Is the error detected only NO
gutter and correct it, if necessary. YES
when high voltage is on
3. Check all adjustments. (during printing)?

1
NO YES
If no vacuum -see the 'NO Vacuum
UNDERPRESSU RE' flo wchart. O.K.?

2
The gutter or return pipe is clogged with dry NO Is ink sucked from YES
ink. Remove dry ink or replace the return pipe. the gutter?

NO
3 YES
Set value to (100%). Nominal ink pressure?

4
YES Ink jet hitting the NO
5 gutter correctly?

YES Adjust the gutter position and ink jet

Gutter is clean NO Clean the gutter and
in the gutter. Check also the position
and dry? wait until it dries.
6 of the charging and HV electrodes.

YES Correct voltage NO

No connection between the charging
7 on the charging
electrode? electrode and socket G2 of RKM card
(at first check the charging electrode
connector in the head!!! )

YES Correct the distance NO

between the charging Adjust position of the
electrode and the ink jet? charging electrode. Charge-signal amplifier AMPF-300B,
IC14, IC15, IC16 or IC17 on RKM
8 card is damaged

NO Correct drops under charging YES

electrode? (shape, breaking
point, distance between drops)

9
1.Adjust the ink breaking voltage. Correct phasing echo
2.Check the cable between RKM and the gun. NO signal from the gutter? YES
3.Change the gun filter and clean the nozzle. (test points PP8 and
4.Change the ink. PP7 of RKM card).
5.Replace RKM board. 10
NO YES
YES Signal exists NO All adjustments O.K.?
(PP8, PP7)?

11
Phasing echo signal is Adjust NO YES
interfered by disturbance Is phasing O.K.?
1.Check the cable between the
gutter and connector G4 on RKM
card.
2. Check the cable screen between
the metal bush on the return pipe
1. In the head the return pipe or gutter cable is in the head and G4 connector
leaded in the wrong way case.
2.T here is a difference of voltages between 3.Check for a short circuit between
the printer's and conveyer's bodies the conductor and cable screen.
3. There is no the gutter shield in the head.

Call a better engineer.

Check for the connection YES NO

Is the cable
between the gutter inlet pipe
O.K.?
and gutter connector.

YES NO
Is the gutter
O.K.?
Replace the cable. CONGRATULATIONS
Replace RKM board Replace the gutter.

66
10.3.2 BAD PRINTING QUALITY

Meaning: error description as follows:

• printouts are not complete (upper or lower drops are missing)
• printing height breaks down after some printouts
• deflected drops are not in the correct position
Signalling: not displayed

Error causes and handling procedure

1.) Misalignment of the ink stream in the gutter

If upper drops are missing:
• Ink stream is adjusted too high in the gutter or the distance between HV electrode and
ink stream is to small. Upper drops hitting the HV electrode
• Adjust the ink stream in vertical position. (see 8.1.4.2 Adjusting Ink Jet)
• Adjust HV electrode in correct position. (see 8.1.2 Adjusting HV Electrode)

If upper drops are missing after the head cover has been installed:
• Check the position of HV electrode holder. It should be parallel to the head’s chassis.

If lower drops are missing:

• Ink stream is adjusted to low in the gutter or the distance between HV electrode and
ink stream is too high. The lower drops are hitting the top of gutter.
• Adjust the HV electrode to correct position.
• Adjust the ink stream higher in the gutter. The gutter should catch the ink stream at
scale factor 2.5 (microscope intervals) below the top of gutter. (see 8.1.4.3 Adjusting
neutral ink stream)

2.) Incorrect drop breaking. Satellites influences the printing quality

• Check the correct breaking point of drops under the microscope. There should be no
satellites. If it is not possible to adjust breaking point without satellites, exchange
nozzle, gun or even the ink. (see 8.1.5 Adjusting Breaking Point)
• Viscosity of ink is too high >25.

3.) Dirty or damaged HV electrode

• Isolation of HV electrode is damaged. Exchange the HV electrode.
• The bottom side of HV electrode is dirtied by dry ink. Clean carefully with a solvent
soaked brush.
• Sometimes a small hair or dust particle adheres under the electrode and causes the
bad printing quality. Check under a microscope or use a magnifying glasses.
• O-ring behind the HV voltage electrode is damaged so that ink gets into in the holder
of HV electrode. HV resistors can be damaged. Exchange O-ring and resistors. Clean
the holder.
• Spring contact (electrical supply of HV electrode) has a transitional-resistance to the
contact of HV electrode. Unscrew HV electrode, dismantle spring contact and clean
the contact of HV electrode.

4.) Other reasons

• Ink is contaminated or the chemical structure of ink is bad. Drops are charged
accurately, but not placed on correct position. Check first accurate charge with
oscilloscope (see capter 8.3).
• HV Converter on power supply is damaged
• Movements (vibrations) of product, print head or conveyor.
• Speed settings too high in relation to the real speed or wrong Interleave setting
• Drop correction program (tkse.bin) or RKM board damaged.
• Some particle of dust or hair in the outlet of print head.

67
10.3.3 INK PRESSURE DROP

Meaning: fast ink-pressure drop below the nominal value or the pump cannot set
the ink pressure to its nominal value (pump time-out occurs).
Panel indications: a steady light of the red FILL. ERR. lamp.
Type of the alarm: a failure which stops the operation of the printer.
Signalling: the INK PRESSURE DROP message on the terminal display, sound
alarm and LED indicator on the RKM board.
Error cause and handling procedure:
1.) Main Ink Filter is blocked
Check first the main ink filter as follows:
• Place an empty and clean vessel below the ink system of the printer.
• Disconnect the filter from the ink pressure pump and hold the end of the tube below
the ink level of tank R3 in direction to the vessel. Additionally unscrew the vacuum line
on top of R3 in order to release the vacuum on R3.
• Observe the flow charateristic of the ink. The ink should run out as a stream. If only
“drop after drop” runs out of the filter, it means that the filter is blocked.
• Replace the filter (see 7.4.4 Changing the main ink filter EBS-6100/EBS-6200).
Note: It is also possible that the ink in R3 is too high viscous or the tube from R3 to the
filter is blocked !

2.) Leakage or air in the ink supply tube to the pump

• Check the route R3  filter  pump. All connections have to be well tighten.
• Check whether the original screw joints (union nuts and gaskets) are installed ? Other
screw joints must not be used. The correct direction of the gasket should be checked
as well. (see 7.4.4 Changing the main ink filter EBS-6100/EBS-6200)

3.) The ink pressure pump is blocked up or damaged

• Prepare a syringe filled up with cleaner. Disconnect the filter’s output from the pump
and connect a syringe to the inlet connector of the pump.
• Push the cleaner in direction to the pump while the pump is active. If this procedure
does not help dismantle and open the pump’s ink chamber and clean all parts,
especially the two check valves. Use an ultrasonic bath. If still no success, replace
both check valves or the whole pump

4.) Vacuum is adjusted too high (> 30%) in EBS-6100 and (>70%) inEBS-6200
• Go to Service menu O INK SYSTEM SERVICE 2 SET VACUUM and check the value
(range from 10% - max. 30% in EBS-6100 and from 50% - max. 70% in EBS-6200).
• Adjust the vacuum to the nominal value of 20% res. 50%

5.) Ink pressure sensor damaged

• The ink pressure sensor transmitts wrong (too low) values to the ink pressure pump
control circuit.
• The consequence is that the pump can not reach the correct pressure.
• Replace the ink pressure sensor.

6.) The return tube, the gutter or the return connector on top of R3 are blocked.
• A blockage of these parts increase the vacuum in tank R3 which may result in an “Ink
Pressure Drop”. The ink pressure pump can not suck enough ink from tank R3
• Check and clean (rinse) these components.

7.) V1 valve does not close properly

• During the starting up procedure the ink flows in the wrong direction via the damaged
valve V1 back in tank R3 instead of the correct way via the valve V0.
• Dismantle and clean or replace V1.

68
8.) Viscosity of ink is too high (> + 20)
• Empty and flush the whole ink circulation system.
• Flush the ink circulation system several times with cleaner, especially the pressure
stabilizer and refill the system with new ink. (see 12.1 Empty the ink system)

8.) Connection line (brown wire) between LA4 connector on RKM-board and pump
driver modul MSP-6100 is broken. Check with an ohmmeter.

9.) Pump driver modul MSP6100R is damaged. Replace the pump driver modul.

10.) Pump control circuit IC120 on RKM-board is broken. Replace IC120.

It might be useful to check the ink pressure hex. values in command HV VALUE, PHOTO,
SHAFT state (see chapter 4.7.2.1 Checking the Ink Pressure)

69
10.3.4 NO OR REDUCED VACUUM
10.3.4.1 EBS-6100
Signalling: not displayed
The ink is not sucked from the gutter. The print head may be overflowed by ink. Phase Error
occurs.
Error causes and handling procedure
Note: It is advisable to install a vacuum gauge with a t-junction (service tool) in the line
between R3 and the vacuum filter. At an adjusted vacuum of 20% after app. 2min (ink stream
in print head is on) the indicated vacuum should be in a range from -0.30bar - -0.45bar. If the
indicated vacuum is lower than -0.3bar it means the vacuum in R3 is too low. Follow the steps
1.-4.) below. If the indicated vacuum is higher than -0.45bar it means that the gutter overflow
is not caused from the vacuum, but from a blocked return tube or gutter. In this case check
and flush the complete 4m return tube.

1.) The vacuum filter is blocked

• Install the vacuum gauge first in front of and next behind the vacuum filter. If you can see a
difference in the vacuum on both positions (lower value behind the filter) the filter is
blocked and has to be replaced.

2.) The vacuum pump is partially blocked or damaged

• First check whether the vacuum pump runs. The characteristic sound is heard when the
led V91 is on. The pump starts and stops in cycles. Check the “Set Vacuum” command.
The correct adjusted value is 20%. (electrical malefunction see point 4.)
• If the electrical supply of pump is ok, look for next reasons: Disconnect the inlet tube from
the vacuum pump. Connect a syringe filled up with cleaner on the inlet of the pump. Follow
the outlet tube (exhaust air) to the solvent bottle, disconnect this tube from the bottle cap
and hold it down in a vessel.
• Switch the printer on and wait for activation of pump. Push the solvent through the pump in
the moment the V91 led turns on. The solvent rinses the inner parts (valve plates) of the
pump. If vacuum still is too low, dismantle the vacuum pump and replace both valve plates
or finally the complete pump.
• The exhaust air tube of the vacuum pump is blocked or squezzed. Check the route
vacuum pump outlet  Solvent Bottle ( Ink Bottle only in EBS-6x00P)  vapour outlet
on printers case.

3.) Leakage on the cover of tank R3

• The O-ring on top of tank R3 is leaky or not correct installed.
• Check the gutter return tube connection on top of R3. The junction of the tubes has to be
tight.
• Check the tightness of all outgoing tubes on top of container R3.

4.) Electrical malfunctions

• The led V91 does not turn on and off in cycles. The IC120 on RKM-board is damaged,
replace it.
• The yellow wire between connector LA4 on RKM-board and the pump driver modul MSP-
6100 is broken. Check with an ohmmeter.
• Check the supply voltage directly on the pump when V91 is on. The voltage should be 7.5
Volt on pump driver MSP-6100R and 11Volt on MSP-6200R is damaged.

70
10.3.4.2 VACUUM PUMP TIME-OUT in EBS-6200

Meaning: vacuum drop below the nominal value or the pump cannot set the
vacuum to its nominal adjusted value.
Type of the alarm: a failure which stops the operation of the printer.
Signalling: the VACUUM PUMP TIME-OUT message on the terminal display,
sound alarm and LED indicator on the RKM board.
This is a time-out error, which occur after the nominal vacuum time limit of 30 sec. has been
exceeded or after a sudden deviation from the nominal vacuum and can be caused from the
following reasons:
• vacuum filter is dirty or clogged
• leakage in the in the vacuum circuit (tank R3, return connector, vacuum filter connectors)
• vacuum pump is broken, worn out or clogged
• vacuum transducer is damaged
• pump driver modul broken
• RKM-board (V91 does not switch on; IC120damaged)

It might be useful to check the vacuum hex. value in command HV VALUE, PHOTO, SHAFT
state (see chapter 4.7.2.2 Checking the vacuum)

71
10.3.5 R3 OVERFILLED
Meaning: the R3 tank has been overfilled permanently.
Panel indications: the red OVER. led is constantly on.
Type of alarm: failure which stops the operation of the printer.
Signalling: the R3 OVERFILLED message on the display and sound alarm
Error causes and handling procedure:
1.) The printer has been switched too often in regular mode. The warning message
“Ink will be to thin due to rinsing” was ignored by the user.
2.) The float on the level sensor is damaged (too heavy due to a leak). The SB3 keeps
constantly on and causes faulty suction cycles.
3.) The level sensor in R3 pretends a wrong “empty R3” signal. The SB3 keeps
constantly on and causes faulty suction cycles.
4.) The ink suction valve V3 does not close properly.
5.) The solvent suction valve V4 does not close properly.
The Overfilled R3 problem can be removed as described in the following flowchart:

OVE R

The tan k R3 is o ve rfilled . The up pe r

le ve l se nsor St3 has bee n activated .

The red l am p OVE R lig hts co ntinuo usly.

Swi tch the u nit o ff.

Switch the unit o ff.

The valves V3 or V4 are leaky. R einsert the ink p ipe to the in k g un.
Disasse mble a nd clea n o r rep lace the m.

S witch the u nit o n. Hold the re moved

Rem o ve suctio n p ipe s from in k and b ottle suctio n p ipe s in a smal l ve sse l,
solven t b ottles. fo r e.g.: Bo ttle cap fille d with so lve nt.
If yo u notice the suc tio n thro ugh the
in k pip e, che ck the V 3 valve, if thro ugh
the sol ve nt pip e, check the V 4 valve .
D isco nne ct the i nk pip e ad aptor from the R ep lace the valve(s), if ne cessary.
in k g un and put the end o f pipe in a n
e mpty and cle an bo ttle .

W ait abo ut 1 5 se conds and sta rt the

P ut the s uctio n pipe s bac k into the ink
E MPT Y INK SYS com ma nd a nd pre ss
a nd so lve nt b ottles.
E nter

Co nti nue w ith re gula r o pe ration a nd

Let ap p. 50m l of ink flo w o ut. p rinti ng.

72
10.3.6 HV ERROR
Meaning: no high voltage or improper high voltage amplitude
Panel indications: the red HV ON lamp on the internal panel flashes
Type of alarm: a failure which stops the operation of printing
Signalling: Message on the terminal and sound alarm. LED indicator on RKM board
Error causes and handling procedures
1.) Shortcut (GND fault) in the route from HV converter on power supply  4.5m HV cable 
HV bracket in print head  HV electrode
2.) HV converter or the HV control circuit, PAR7B board, is damaged
3.) Ink or solvent penetrated into the holder of HV electrode and has damaged the HV
resistors
4.) +24V on power supply are missing: Check between pins 2 and 3 (and pins 4 and 5) on the
quick out socket of power supply.
Flowchart

HV error

Stop printing and disconnect the HV cable from

the HV block of the power supply NT6000.

Start printing.

NO Is the HV error YES

indicated?

Check for +24V voltag e.

(24,5V>right value>22V)

A HV circuit earth fault, breakd own or sp arking NO Is +24V amplitude of YES

in the connection b etween the HV block of the right value?
NT6000 and the HV electrode in th e head.

NO Two head YES

HV cable insulation is d amaged. Replace the printer?
HV cable, or protect it against breakdown.
YES HV error in
head no.1?
The HV electrode is covered with a gathering
of dry ink which causes the earth fault. Clean The HV block of NT6000 or HV NO
the HV electrode, replace electrode if its control circuits are dam aged.
insulation is damaged. Check the HV holder
and replace it when it is dam aged. After
replacem ent fix HV electrode in the holder. The HV2 module is damaged.

Replace the power supply NT6000.

Two 33-M* resistors installed between the HV

cable and HV electrode in the PTFE holder
are dam aged. R eplace th e resistors. After Disconnect W 7 connector from
replacem ent seal the HV cable (inside the RKM board (see Fig 7.1.4.).
PTFE arm) with silicon.

NO Is +24V amplitude YES Some solenoid coin

HV electrode insulation is dam aged. There of the right value? is shorted.
are sharp edges, barbs, flashes, etc. Replace
the HV electrode.

Disconnect pin +24V from W 1.

NO YES
Is +24V amplitude
of the right value? RKM board is broken.

The +24V power supply is damag ed.

73
10.3.6.1 HV cable replacement kit (P380189)

10.3.6.2 HV connection scheme

10.3.6.3 Instructions on how to replace the HV cable

74
10.3.7 300V ERR !!
Meaning: no +300V voltage.
Panel indications: a steady light of the red +300V ERR lamp.
Type of alarm: a failure which stops the operation of the printer.
Signalling: the 300V ERR !! message on the terminal display, sound alarm and
LED indicator on the RKM card.
Error causes and handling procedure:
1.) Charging-voltage amplifier AMPF300B on RKM board is damaged

2.) 300V converter on the power supply is damaged.

3.) Ribbon cable of power supply is not connected RKM board

flowchart

300V ERR !!

Start the SERVIC E command and

disconnec t the W 3 connector from
the RKM board.

NO YES +2 4V v oltage
Is the 300V er ror
still detected? 24 .5 V >right va lue >22 V

The AMPF300 module on RKM is damaged.

YES +24V amplit ude NO

of right value?
The 300V module in NT6000 is damaged.

Disconnect the W7 c onnector f rom the

RKM board.

Pull out pin +24V of the W1 c onnector on RKM NO +24V amplitude YES
of right value?

Some solenoid coil is missing.

YES +24V amplit ude NO
of right value?
The +24V power supply of NT6000 is damaged.

The RKM board is broken.

75
+24V test points +300V test points
- pins 2 and 3 of the power supply connector - pins 1 and 2 of the power supply connector
- pins 4 and 5 of the power supply connector, - pins of W3 connector on RKM board
- pins +24V and GND of the W1 connector
on RKM board.

1 20

W 7 c o n n e c to r o f + 2 4 V

W 3 - c o n n e c to r o f 3 0 0 V
R y su n e k 1

W 1 c o n n e c to r
+ 2 4 V p in (b ro w n w ire )

76
10.4 SUMMARY OF OTHER MALFUNCTIONS
10.4.1 BATTERY DISCHARGED !!! - MEMORY DAMAGED !!!
all RAM-stored informations (text files, parameters and on-line system data) are damaged, or
put out of order. New bottles are requested from the printer with the message BOTTLE
ALREADY CANCELLED or INK BOTTLE TOO OLD message. The current date is set to
01.01.00
• The printer or RKM-board has been stored for long time. (longer than three months)
• The battery is damaged. Replace it only with the correct type (rechargable accu !!!), flat
type MnO2-Li 3.0 Volt (for e.g.: SANYO ML2430). Afterwards select the “Clear memory”
service command.
• The charging circuit on the RKM-board is damaged or interrupted.

10.4.2 IDENTIFIER ERROR OR BOTTLE CODE ERROR.

PLEASE CALL EBS….

• The identifier is destroyed.

• Use the command “Unlock Protection” in menu “AUX.COMMANDS and call EBS in front of
the printer. You will receice a 44 digit code from EBS which has to be typed in underneath
the 9 digit code generated from the printer software.

10.4.3 NO IDENTIFIER IN FLASH MEMORY !!! DANGER OF MALFUNCTION

This message warns that there is no identifier copy in flash memory after switching the printer
on. This condition can lead to malfunctions, if the identifier stored in RAM will be destroyed.
Reasons for this condition are:
• An error occurred during transmission of the main software.
• The identifier has never been written to flash (during production)
• 9 or more identifier changes has been done.
• Transmit the main software to the printer again. Use only the newest version swprog.exe
version 2_11.
• Transmit again the Identifier to the printer. Use the command “Unlock Protection” and call
EBS in front of the printer. The identifier can be restored only by a 44 digit code from EBS.

10.4.4 INK PRESSURE NOT RELEASED

This message may appear immediately after the printer has been turned on. It means that the
ink pressure within the ink system has not been released during switching off procedure.
• The valve V5, which release the pressure during switching off procedure is blocked.
Dismantle and clean or replace the valve V5.
• The pressure stabilizer is blocked.

10.4.5 MAX INK PRESSURE EXCEEDED or PRESSURE TRANSDUCER ERROR

The ink pressure has exceeded the nominal value.
• The ink pump control circuit (MSP-6100R/MSP-6200R) is damaged.
• The pressure transducer is damaged
• Break in the supply cable to pressure transducer.
• Supply voltage 5 Volt for pressure transducer is not available. (RKM board fault).
• The pressure stabilizer or the line from pump to the stabilizer is totally blocked.

10.4.6 VACUUM TRANSDUCER ERROR (only in EBS-6200/EBS-6200P)

This error can be caused by the following reasons:
• connector of vacuum sensor is not connected on socket LA10 of RKM-board
• vacuum sensor damaged
• RKM-board of EBS-6100 is installed in printer EBS-6200 without the wire connection (5
Volt supply voltage of vacuum sensor)
• RKM-board of EBS-6200 is installed in printer EBS-6100. The software expect the output
voltage of vacuum sensor which is not present.

77
10.4.7 GUTTER CIRCUIT CLOGGED
When after turning the printer on the vacuum instantly reaches the max. value or the pump is
off during more than 2,5 minutes during normal operation this error message is displayed.
• printer has been switched off without cleaning the 4m return tube
• the 4m return tube is squezzed or blocked
• the gutter or the metal jointer is blocked by dried ink or impurties
• the return connector on R3 is blocked

10.4.8 REPLENISHMENT ERROR

This error is shown, if no new bottle is validated within 20 minutes after the indication of the
EMPTY BOTTLE message. The printing stops.

• The EMPTY BOTTLE warning has been ignored over more than 20 min. Replace the
empty bottle (Ink or Solvent) with a new one.
• The operator has not inserted the suction pipe into the bottle and has not screwed the
bottle in place.
• the ink pipe filter tip is blocked.
• Leakage in the connection between the tank R3 and the valve manifold connector (R3) or
between the inlet of valve V3 and the ink bottle.
• The valve V3 is blocked or damaged.
The following applies to the solvent :
• The operator has not inserted the suction pipe into the solvent bottle and has not screwed
the bottle in place or the solvent pipe filter tip is blocked.
• Leakage in the route between the valve V4 inlet  solvent pump  solvent bottle.
• The valve V4 is blocked or damaged.
• The check valve on the solvent pump does not open properly.

10.4.9 NO PHASING BETWEEN TEXTS....INCREASE DISTANCE BETWEEN TEXTS

• Rpt.Dist. parameter is too small for the given printing speed.
• If printing is continued although this warning has been displayed, the PHASE ERROR is
detected by the system. The printing will stopp within 2 minutes!!!
• The “Tge” (TimeGapError) warning appears in the status window for about one second.

10.4.10 NO VISCOSITY MEASUREMENTS

• Distance between printed texts is too small for the given printing speed.
• Communication to the ink processor (JET) broken.

10.4.11 HEAD TEMPERATURE TOO HIGH !!

• The head temperature has fluctuated by more than 10°C in the print mode.
• The “Ter” warning appears in the printer status window.
• Stop the printing for about 60 seconds in order to ensure that the automatic drop breaking
point can readjust to the new temperature. The breaking point should be checked and
adjusted after two hours again, when the ink in the system has reached the same
temperature as the environment.

10.4.12 DATE IS SET BACKWARD

• The printer detects, that the date was changed to the wrong value. In this state all
bottles are ignored. There is no problem to change the data to correct value (only
forwards).
• But if you first change the date forwards – thereafter set it back to the correct value
this will cause the DATE IS SET BACKWARD error.
• This problen can only be solved by an special unlock code from EBS. So, please
call EBS.

78
10.4.13 THE INK SYSTEM CAN BE OVERFILLED BY MULTIPLE SWITCHING OFF !!
• If the printer is switched off in regular mode too often, the ink gets strongly diluted
and the ink system may overfill.
• It is recommended to run the printer for at least 4 hours. Check the viscosity before
switching the printer off. If the viscositiy is below -05, it is always better to leave the
printer in operation and switch it off at a later time.

10.4.14 INK WILL BE TOO THIN DUE TO RINSING….

• The printer has been switched off although the ink viscosity was below -03. The
rinsing process will additionally decrease the ink viscosity.
• For the next starting up plan a longer operation time of the printer, so that the
printer can adjust the viscositiy to higher values automatically.

10.4.15 SENSOR ERROR

• The sensor testing procedure is applied to the following sensors: SB3, 300V, HV1, HV2
and air pressure sensor.
• A flashing LED on the internal display of the RKM board indicates which sensor is broken.
• This error is detected when the oscillation at the sensor output makes it impossible for the
signal filtering procedure to detect the sensor status or when the level of the signal is not
compatible with the TTL standard and the systems find it difficult to interpret the sensor
CLR.

logic status. The alarm can be cleared with the ALARM key.
• The reasons for the error depend on the type of sensor and include the following: Unstable
position of the float, damaged 300V module, HV module, buffer chip - IC105 on the RKM
board.

79
11. Ink Monitoring System (IMS)
11.1 General Information
Both the Ink and Solvent bottles are equipped with a transponder.
A transponder is an electronic circuit with no need for wire contact or additional power supply.
The information in the transponder is scanned with a built-in IMS, that uses two aerials situated on
the bottom of the bottle chamber.
The following data are stored in the transponder:
• Type of fluid: Ink or Solvent
• The base of the fluid, e.g.: MEK or Acetone etc.
• Pigmented or non-pigmented Ink
• Colour of Ink
• The expiry date of the fluid
• Identity of special Solvent: EBS6100/6200: TS3B01K; EBS6000:TS3A01K

Consumable bottle
Transponder
IMS-antenna:
Solvent Ink

11.2 Basic functions of IMS

When a new bottle of Ink or Solvent is inserted the data contained in the transponder is read and sent
via the antenna to the main CPU of the printer.
The IMS software verifies, if the transponder data correspond to the data saved in the printer. While
doing so, the printer displays:

BOTTLE VERIFYING: WAIT 10 SECONDS, PLEASE

If verification was OK printer displays:

INK: or SOLVENT:
BOTTLE ACCEPTED

Now the IMS software continuously checks, if this bottle (transponder) is present on the antenna.
Of course, the same corresponding bottle (transponder) can be removed for a brief moment from the
antenna and reinserted without the transponder being cancelled.
If a wrong bottle (transponder) is inserted the printer starts signal a malfunction. This transponder is
rejected, but not cancelled and can be used in other appropriate printers.

80
11.2.1 Replacing the Bottle of Ink and Solvent
The empty bottle condition is detected by the ink system and the following terminal message is
displayed:
INK: or SOLVENT:
EMPTY BOTTLE
This is the right time to replace the empty bottle with a full one.

11.2.2 Time credit in MEK-based printer

After the "Bottle accepted" message appears the time credit of solvent transponder starts to be
discounted. Obviously only during the operating time of the printer.

Printer : Time Credit: Real average consumption:

EBS-6100/EBS-6200/EBS-7100 480h 280-350h

EBS-6100P/EBS-6200P 360h 180-250h

The time credit in printer software is sufficiently greater as the real consumption time of the Solvent.
As soon as the time credit has run out the printer displays:

INK: or SOLVENT:
EMPTY BOTTLE

During normal operation of the printer the bottle is always emptied before the time limit expires.

11.2.3 Important IMS Instructions

• Do not refill an empty bottle with ink ( or solvent), as the IMS will reject the bottle after reaching the
time limit anyway.
• Ink or solvent bottles which are not quite empty should not be removed from the printer and
replaced with new bottles without any reason, because the first bottle won’t be accepted again
when a new transponder has already been accepted by the printer.
• If a customer has more than one printer, under no condition bottles which have already been
accepted should be swopped around. A bottle which has already been acknowledged will not be
accepted by another printer. It will be refused with the message “Bottle Already Cancelled”. Do not
put such bottle back to stock.
• Under no circumstances the internal date in the printer should be altered! An attempted alteration
can block the printer and this situation can only be remedied by calling EBS and entering a code !
Depending on the software version (below 17_4c) the bottles (transponders) will be cancelled.

81
11.3 Bottle Information Menu
1 INK EXPIRE DATE

The service life of the ink is coded in the transponder and can be viewed.
If the expiry date is reached the message: INK: BOTTLE TO OLD is indicated on the display
One week before the expiry date is reached the printer shows the message: Ink Expires !!!

2 SOLVENT TIME TO WORK

Indicates the remaining time of the Solvent bottle. When this time has been expired the printer
signals: S: Empty Bottle

3 PRINTER/INK/SOLV.TYPE

Diagnostic window for the purpose of monitoring the printers configuration and the last
inserted Ink and Solvent bottles:

Pigm Base HdTyp Colour Capac. Econom. Subt.

Printer: 00 00 01 06 -- 02 --
L. Ink : 00 00 01 06 01 -- 00
L. Solvent: 00 00 -- 00 03 02 00
L.v. Bottle: 00 00 01 06 03 -- 00

5 NO. OF TXT / 1l

This command indicates the max. number of texts which can be printed with the current text in
relation to 1ltr. of ink

8 REMOVE PROTECT TIME

This command finishes the 5 hour protect time and the IMS is active again.

9 IMS VERSION

Indicates the program version of the IMS

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11.4 IMS Error Messages
Note:
If the bottle (transponder) is detected as a wrong one or the bottle is removed from the
antenna the printer starts signal a malfunction.
It is not possible to delete or suppress such error conditions other than by inserting a fresh
bottle (transponder). Any current bottle can freely be removed for a short time and reinserted
as long as the “EMPTY BOTTLE” conditions has not occurred in the meantime !
Any error message generated by IMS disables the Start Print command or will stop the
printing after 30 minutes.

11.4.1 INK: or SOLVENT: EMPTY BOTTLE

• The ink systems has detected after several trials that there is no more fluid in the
bottle.
• The expire date or the time credit of bottles is reached

11.4.2 INK: or SOLVENT: NO BOTTLE

• No transponder on the antenna
• Antenna not connected
• Broken antenna or cable
• Wrong programmed transponder
• IMS circuit on RKM broken

11.4.3 INK: or SOLVENT: BOTTLE ALREADY CANCELLED

This bottle (transponder) was already inserted and accepted in another printer

11.4.4 INK: BOTTLE TO OLD

The INK/SOLVENT expire date reached. One week before message INK BOTTLE TO OLD
the warning INK EXPIRES is displayed.

11.4.5 BOT. FOR OTHER PRINTER TYP

Bottle is inserted to other printer type (ex. bottle for EBS1500 is inserted into EBS6000)

11.4.6 PIGMENTED/NONPIGM MISMATCHED

10.4.7 WRONG BASED LIQUID

Bottle with a wrong base, for instance an Ethanol bottle has been inserted in an MEK-based
printer.

11.4.8 WRONG COLOUR

11.4.9 WRONG SOLV.FOR ECON.PRINTER

Solvent bottle with lower time credit has been inserted as determined in the printes software.
For e.g.: Solvent bottle from EBS-6000 (120hrs.) is inserted in EBS-6100 (480hrs).

11.4.10 INK/SOLVENT MISMATCHED

Ink or solvent bottles are mixed up on the antenna

11.4.11 TRANSPONDER TOO FAR FROM ANTENNA

Ink or solvent bottle (transponder) are not correctly placed in the centre of the antenna

11.4.12 IMPROPER TRANSPONDER

While reading the tranponder the software has detected wrong content in the transponder.
Under certain circumstances it can happen that this error is shown without any reason, when
the transponder in the moment of verification is moved slowly on the antenna and reach max.
distance from antenna.
In this case place old cancelled transponder on the antenna, remove protection time, wait for
message “Bottle already cancelled” and next put the transponder (bottle) which made the
Improper Transponder message. Now this bottle will be accepted.

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11.5 IMS Protect Times
11.5.1 Service Protect Time

Immediately after a bottle has been accepted (BOTTLE ACCEPTED message) a

period of:

5 hours PROTECT TIME

is introduced. During this time error messages: “EMPTY BOTTLE”, “NO BOTTLE”,
“BOTTLE ALREADY CANCELLED” do not appear and are ignored. This protection
time allows service, fault detection or repair without cancelling new bottles
(transponder). For instance: The V3 in a EBS-6100 printer does not open, the
consequence will be “Empty bottle” detection and a new bottle (transponder) might be
cancelled again.

11.5.2 Bottle Protect Time

Because of the following malfunctions:

• Filters from suction pipes are blocked
• Valve V3 does not open properly
• Valve V4 does not open properly
• No vacuum or vacuum break down
the printer will cancel the transponder because for the printer the
bottles are detected as empty

Solvent Bottle:
Starting from software version 17_2b for the first 60% of the time limit (e.g. 480h) the
printer does not reject the solvent bottle transponder, even if the bottle has been
detected as empty.

After reaching the time limit of 60% (192hrs), when the printer can not fill the tank for
whatever reason, the printer demands a new solvent bottle (transponder). The
message SOLVENT: EMPTY BOTTLE is displayed and the alarm can not be resetted.
Only the insertion of a new solvent bottle (new transponder) cancels the alarm.

Ink Bottle:
Starting from software version 17_2e for the first 60% of time from ink bottle insertion
to the INK EXPIRE DATE, the printer does reject the ink bottle transponder, even if the
bottle has been detected as empty

After reaching the time limit of 60% (app. 7-8 months after insertion), when the printer
can not fill the tank for whatever reason, the printer demands a new ink bottle
(transponder). The message INK: EMPTY BOTTLE is displayed and the alarm can not
be resetted. Only the insertion of a new solvent bottle (new transponder) cancels the
alarm.

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12. EMPTYING THE SYSTEM OF INK

12.1 EBS-6100/6200

12.1.1 Emptying the ink system:

GUN GUN’S THREAD

DRAIN TUBE

1) Switch the printer on and wait until the valve V0 has been activated.
2) Select in Service menu the command 7 INK STOP, to rinse the print head and return pipe.
3) Remove the nozzle and nozzle filter. Keep the nozzle at a safety place for e.g.: in the door
of the electronic section.
4) Pull out the suction pipes from the ink and solvent bottle and install a drain pipe on the
gun’s thread and put the other end into a empty bottle. Connect to the ink suction pipe a
bottle of cleaner or solvent
5) Enter the Service password „E25PIX” and start the command E EMPTY INK SYS. The
valves V3 and V4 turn on for a brief moment in order to clean the ink and solvent suction
pipes.
6) In case of very high ink viscosity it is recommended to empty the tank R3 manually.
Disconnect the angle coupling between main ink filter and R3 and drain the ink into a
metal vessel.
7) The procedure is finished, when the ink flow stops and only air comes out of the drain
pipe. The level sensor led SB3 is constantly on.
8) Switch the printer off with the main power switch.
9) The control chamber of solvent pump remains full of ink. Dismantle the solvent pump,
loosen the six srews and rinse the pump’s ink chamber manually by using a syringe filled
with cleaner.
10) Reassemble the pump, but do not reattach the pump in the system. Close the ink control
port (outlet tube from V6 valve) of the solvent pump with a plug.

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12.1.2 Rinsing the Ink System EBS-6100/6200

After finishing the emptying procedure start to rinse the ink circulation system:

1) Switch the printer on and go immediately to the Service menu, enter the service password
and select O INK SYSTEM SERVICE.
2) The process of refilling the system is introduced with the special command 3 FILLING
OF EMPTY INK SYSTEM. Start this command after the HV test has finished. The ink
suction valve V3 is activated several times.
3) During the refilling process the valves V5 and V6 turns on to refill all components (the ink
valve assembly, solvent pump, pressure stabilizer). The procedure is finished, when the
level sensor SB3 turns off.
4) The printer starts the normal switching on procedure automatically: V6 (flush), V1 (suck),
V0 (ink on).
5) Immediately after activation of valve V0 select the command 5 INK SYSTEM RINSING
The ink pressure is reduced to 9% only (app. 0.2bar).
6) Before you connect the drain tube on the gutter let some cleaner (highly contaminated by
the old ink) run out in a vessel for about 10 seconds.
7) Fix the drain tube on the gutter.

8) The cleaner should circulate in the system for about 10-15 minutes.
9) Thereafter select the command 5 FAST OFF, remove the drain tube from the gutter and
put it again in an empty bottle.
10) Start the command E EMPTY INK SYS. and empty the cleaner.
11) Repeat the rinsing procedure several times depending on the condition of old ink.
12) Switch the printer off on the main power switch.
13) Reattach the solvent pump.

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12.1.3 Filling the Empty Ink System with new Ink

1) Remove the cleaner (solvent) from the ink suction tube and connect the new bottle of ink.
2) Install a new main ink filter and nozzle filter.
3) Perform the same steps as in “Rinsing the ink system EBS-6100/6200 step 2.) and 3.)
4) It is advisable to drain the new ink (diluted with solvent) for min. 10 seconds and let et the
ink circulate for a few minutes using the drain pipe.

5) Go to command 5 FAST OFF to finish the circulation of new ink.

6) Switch the ink stream on 6 INK ON for about 10 seconds, to flush the nozzle filter and
the gun. Stop the ink flow with the command 3 V0 OFF.
7) Clean the gun’s thread, screw on the nozzle and position the charging electrode.
8) Start the ink stream with command 4 V0 ON..
9) Check the correct position of ink stream in the gutter and charging electrode.
10) If the ink stream is stable, check the quality of phasing and viscosity. The breaking point
should only be adjusted in range from –02 up to +10.
11) Connect the solvent bottle first if the viscosity reaches positive values. Control the quality
of printing.

Remark: Because of the low solvent consumption in EBS-6100/6200 it can take several hours until
the viscosity adjusts in the correct range. In order to reduce this time, disconnect the outlet (exhaust
air) from the vacuum pump and increase the vacuum with command 2 SET VACUUM to min. 30% at
EBS-6100 and to 70% at EBS-6200

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13 PASSWORDS
13.1 FACTORY PASSWORD
Factory password is used to unlock some protected functions:

• Clear User Password, New Identifier,

• Unlimited operation time, New Ink / Solvent Type,
• Extra time limit, Reset Busy Time.
• 50 hours without INK/SOVLENT checking.

You have to use the password if the printer displays the message:
CALL EBS GmbH
++49(0)2293 – 939110 or-939112

How to use 'FACTORY PASSWORD' :

1. Select 5 AUX. COMMAND
2. Select 8 UNLOCK PROTECTION
3. On the display appears a 9 digit code - now don't press any key and don't switch the
printer off !!!!!
4. Call to EBS and spell code displayed by the unit and tell the function you need.
5. Type in the received 8 digit hexadecimal code from EBS and press the <Enter> key.

13.2 SERVICE PASSWORD

Use this password only for special service functions:
• Adjustments and service operations ( E25PIX )
• Deleting user password (if your customer has forgotten his user password)

You can delete the User Password in two ways

Using the Service Password

Using Factory Password

To delete the User Password use Service Password:

• go to TEXT SERVICE
• as password type in the Service Password (E25PIX)
• go to position CREATE/CHANGE PASS
• press the DELETE key to delete all asterisks
• press <Enter>

now the terminal displays the confirmation message: PASSWORD DELETED

13.3 USER PASSWORD

The objective of the user password is to protect text files, parameter blocks and the object counter
against accidental or deliberate access by unauthorised persons. How to define, enable and change
the user password please see in User’s Manual.

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14. How to flash the RKM 1-4 XX - board :
(step by step instructions)

Hardware:
- Computer with serial RS232 or USB port
- Transmission-cable P380101(1,50m) or P380197(15,00m)

Transfer Software:
- Transfer software for printer’s Main program (serial or USB) : SWprogxx.exe
- Transfer software for printer’s Jet- and Drop correction
program via serial or USB port: Prgfl32.exe

Note: Use always newest version of download software

Firmware (Printer software):

- Main-program on RKM-board: swaps.bin
- Jet-program on RKM-board: flash.bin
- Tkse-program on RKM-board: tkse.bin
- Bootloader-file: boot.bin

Download the swaps.bin file:

• Put all files on drive C:/ in one directory, name the directory e.g.: FLASH.
• It is recommended to create a link to the Desktop.
• Connect your PC with printer´s RS232/USB port.
• Go to “4 Service” menu command “D Others” and type in the password „E25PIX”.
• Go to „M Serial Channels Configuration", choose Channel 1 „Special channel" and
speed „9600 Bd."
• Start SWprogxx.exe; set Baudrate to 57600 and select the used COM-port, load the
swaps.bin and „Start programming“. Follow the instructions.
• The message: „Connection established at 57600Bd“ is shown on printer display and
some other messages follow during the automatic process of programming.
• When procedure is finished „Writing Flash OK message… “ appears. Switch the printer
off by main power switch.
• Turn the printer on again and check in „Aux.Comands – Options – Main “, if the new
main software version has been correctly installed.

Download the flash.bin and tkse.bin files

• Go to “4 Service” menu command “D Others” and type in the password „E25PIX”.
• Go to „M Serial Channels Configuration", select Channel 1 „Special channel" and speed
„9600 Bd."
• Now start the prgfl32.exe on your PC. Set Baudrate to 9600 and select the used COM-
port.
• Go to „S INK SYST PROGRAMMING” and press Enter.
• Answer ARE YOU SURE ? with “Y” and Enter.
• Message “PC transmission OK” appears and the flash.bin file is transmitted.
A counter counts down from 28 to 0 and the printer switches off automatically.
• Switch the printer on again and perform the same procedure as above.
• Go to „T Correction PROGRAMM” and press Enter.
• Answer “ARE YOU SURE ?” with “Y” and Enter.
• Message “PC transmission OK” appears and the tkse.bin file is transmitted.
A counter counts down from 451 to 0 and when finished “Press Enter” appears.
• Finally go to „Service“ and do “H Clear Memory“ command.

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15. PRINTING SPEED EBS-6100/EBS-6200
The below given tables show the relationship between the printer's maximum print rate and the setting of
the Resol. dot/cm print parameter for various print rates (the Speed print parameter) and various print
heights (7, 16, 25 or 32 dots).
Interleave: NO, STANDARD.

Maximum print rate [m/min]

Resol. dot/cm
Parameter

Parameter Speed=SLOW MIDDLE FAST

Print height [dots] Print height [dots] Print height [dots]
32 25 16 7 25 16 7 16 7
9 42 55 65 148 55 130 297 245 595
10 37 50 58 133 50 117 267 220 535
11 34 45 53 121 45 106 243 200 487
12 31 41 48 111 41 97 223 183 446
13 29 38 45 103 38 90 206 169 412
14 27 35 41 95 35 83 191 157 382
15 25 33 39 89 33 78 178 147 357
16 23 31 36 83 31 73 167 137 334
17 22 29 34 78 29 68 157 129 315
18 21 27 32 74 27 65 148 122 297
19 19 26 30 70 26 61 140 116 281
20 18 25 29 66 25 58 133 110 267
21 18 23 27 63 23 55 127 105 255
22 17 22 26 60 22 53 121 100 243
23 16 21 25 58 21 50 116 95 232
24 15 20 24 55 20 48 111 91 223
25 15 20 23 53 20 46 107 88 214
26 14 19 22 51 19 45 103 84 206
27 14 18 21 49 18 43 99 81 198
28 13 17 20 47 17 41 95 78 191
29 13 17 19 46 17 40 92 76 184
30 12 16 18 44 16 39 89 73 178
31 12 16 18 43 16 37 86 71 172
32 11 15 17 41 15 36 83 68 167
33 11 15 17 40 15 35 81 66 162
34 11 14 16 39 14 34 78 64 157
35 10 14 16 38 14 33 76 63 153
36 10 13 15 37 13 32 74 61 148
37 10 13 15 36 13 31 72 59 144
38 9 13 15 35 13 30 70 58 140
39 9 12 14 34 12 30 68 56 137
40 9 12 14 33 12 29 66 55 133

Interleave: MULTILINE.

Maximum print rate [m/min]

Resol. dot/cm
Parameter

Parameter Speed=SLOW MIDDLE

Print height [dots] Print height [dots]
32 25 16 32 25 16
9 37 66 99 74 99 148
10 33 59 89 66 89 133
11 30 54 81 60 81 121
12 27 49 74 55 74 111
13 25 45 68 51 68 103
14 23 42 63 47 63 95
15 22 39 59 44 59 89
16 20 37 55 41 55 83
17 19 35 52 39 52 78
18 18 33 49 37 49 74
19 17 31 46 35 46 70
90
 Maximum print rate [m/min]

Resol. dot/cm
Parameter Parameter Speed=SLOW MIDDLE
Print height [dots] Print height [dots]
32 25 16 32 25 16
20 16 29 44 33 44 66
21 15 28 42 31 42 63
22 15 27 40 30 40 60
23 14 25 38 29 38 58
24 13 24 37 27 37 55
25 13 23 35 26 35 53
26 12 22 34 25 34 51
27 12 22 33 24 33 49
28 11 21 31 23 31 47
29 11 20 30 23 30 46
30 11 19 29 22 29 44
31 10 19 28 21 28 43
32 10 18 27 20 27 41
33 10 18 27 20 27 40
34 9 17 26 19 26 39
35 9 17 25 19 25 38
36 9 16 24 18 24 37
37 9 16 24 18 24 36
38 8 15 23 17 23 35
39 8 15 22 17 22 34
40 8 14 22 16 22 33

example for text with parameter Distance =1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

0 1cm

resolution = 20 dots / cm

91