JP2014169152A - Recording device and recording method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress uneven cleaning of an adhesive belt caused in a recording device capable of intermittently delivering a recording medium.SOLUTION: A recording device includes: a transport mechanism 3 having an adhesive belt 10 placing a recording medium P and being capable of intermittently delivering the recording medium P; a recording mechanism 4 for performing a recording by reciprocating and scanning a recording head 7 in a direction B intersecting with a transporting direction A of the recording medium P; and a cleaning mechanism 15 having a cleaning unit 13 contacted to the adhesive belt 10 and a pressing part 19 pressing the cleaning unit 13 to the adhesive belt 10. The pressing part 19 presses the cleaning unit 13 to the adhesive belt 10 so that pressing force at the time of a movement of the adhesive belt 10 accompanying an intermittent movement is larger than that at the time of a stop of the adhesive belt 10 accompanying the intermittent movement.

Description

  The present invention relates to a recording apparatus and a recording method including a transport mechanism that transports a recording medium placed on an adhesive belt.

2. Description of the Related Art Conventionally, a recording apparatus including a transport mechanism that transports a recording medium placed on a movable belt has been used. Among such recording apparatuses, a recording apparatus including an adhesive belt coated with an adhesive that releasably adheres and holds the recording medium to the mounting surface of the recording medium is disclosed as a movable belt. Yes.
In such a recording apparatus provided with an adhesive belt, ink may adhere to the adhesive belt, and therefore a recording apparatus including a cleaning mechanism for cleaning the ink attached to the adhesive belt is disclosed.
For example, Patent Document 1 includes an endless belt that adheres and fixes a recording medium to be conveyed, a cleaning brush that can clean the endless belt, and a cleaning unit that includes a cylinder that can lift and lower the cleaning brush. A recording device is disclosed.

  In addition, a recording apparatus that uses a recording head to reciprocate in the direction intersecting the recording medium conveyance direction and ejects ink to perform recording is used. Such a recording apparatus supports reciprocating scanning of the recording head. Since the recording medium needs to be transported, the recording medium is transported intermittently. In such a recording apparatus that includes an adhesive belt cleaning mechanism, the adhesive belt intermittently moves as the recording medium is intermittently conveyed.

JP 11-192694 A

However, in a recording apparatus that includes an adhesive belt cleaning mechanism and intermittently conveys a recording medium, a part of the adhesive belt that has a long contact time with the cleaning mechanism (a part that comes into contact with the cleaning mechanism in a stopped state) and cleaning A portion having a short contact time with the mechanism (a portion contacting the cleaning mechanism only in the moving state) was generated. For this reason, cleaning unevenness may occur in the adhesive belt between the portion with a long contact time with the cleaning mechanism and the short portion.
Note that the recording apparatus of Patent Document 1 has no description on the occurrence of uneven cleaning on the adhesive belt because a portion with a long contact time with the cleaning mechanism and a short portion are generated.

  Accordingly, an object of the present invention is to suppress uneven cleaning of an adhesive belt that occurs in a recording apparatus capable of intermittently conveying a recording medium.

  A recording apparatus according to a first aspect of the present invention for solving the above-described problem includes an adhesive belt on which a recording medium is placed, a conveyance mechanism capable of intermittently conveying the recording medium, and the recording medium Cleaning mechanism having a recording mechanism for reciprocally scanning the recording head in a direction crossing the conveying direction, a cleaning unit that contacts the adhesive belt, and a pressing unit that presses the cleaning unit against the adhesive belt And the pressing portion is configured so that the pressing force at the time of movement of the adhesive belt accompanying the intermittent conveyance is larger than the pressing force at the time of stopping the adhesive belt accompanying the intermittent conveyance. The unit is pressed against the adhesive belt.

In a recording apparatus that performs recording by reciprocally scanning a recording head in a scanning direction that intersects the conveyance direction of the recording medium, the conveyance mechanism stops conveyance of the recording medium during recording scanning (while the recording head is moving). In other words, during recording, the reciprocating scanning of the recording head and the movement of the adhesive belt are performed alternately. For this reason, the pressing time of the cleaning unit to the adhesive belt when the adhesive belt is stopped due to the intermittent conveyance of the recording medium is shorter than the pressing time when the adhesive belt is moved due to the intermittent conveyance. become longer. Therefore, in the recording apparatus in which the cleaning unit with the adhesive belt in the cleaning mechanism is pressed against the recording medium with a constant pressing force, the adhesive belt is stopped when the adhesive belt is stopped than when the adhesive belt is moved. The cleaning effect of the sex belt is enhanced.
On the other hand, when the pressing force of the cleaning unit on the adhesive belt is increased, the cleaning effect of the adhesive belt is enhanced.

According to this aspect, the pressing portion is configured so that the pressing force when the adhesive belt is moved due to the intermittent conveyance is larger than the pressing force when the adhesive belt is stopped due to the intermittent conveyance. Press the cleaning unit against the adhesive belt. For this reason, it is possible to suppress uneven cleaning of the adhesive belt.
In addition to the unevenness of the degree of cleaning of the ink adhered to the adhesive belt, the unevenness of cleaning includes the deterioration of the adhesiveness and the unevenness of the peeling applied to the adhesive belt accompanying the cleaning of the adhesive belt.

  A recording apparatus according to a second aspect of the present invention is characterized in that, in the first aspect, the recording apparatus includes a control unit that controls a pressing force by the pressing unit.

  According to this aspect, since the control unit that controls the pressing force by the pressing unit is provided, the adhesive belt is moved with the intermittent conveyance rather than the pressing force when the adhesive belt is stopped with the intermittent conveyance. It is possible to control the pressing portion with high accuracy so that the pressing force increases.

  The recording apparatus according to a third aspect of the present invention is the recording apparatus according to the second aspect, wherein the controller is a product of a pressing force and a pressing time per unit area when the adhesive belt is stopped during the intermittent conveyance. And the pressing force by the pressing portion is controlled so that the difference between the product of the pressing force per unit area and the pressing time during the movement of the adhesive belt accompanying the intermittent conveyance is reduced. To do.

According to this aspect, the product of the pressing force and the pressing time per unit area when the adhesive belt stops during the intermittent conveyance, and the unit area when the adhesive belt moves during the intermittent conveyance. The difference between the product of the pressing force and the pressing time is reduced. For this reason, it is possible to effectively suppress uneven cleaning of the adhesive belt.
The product of the pressing force per unit area at the time of stopping the adhesive belt accompanying the intermittent conveyance and the pressing time, and the pressing force per unit area at the time of movement of the adhesive belt accompanying the intermittent conveyance. Most preferably, there is substantially no difference between the product of the pressure and the pressing time.

  The recording apparatus according to a fourth aspect of the present invention is the recording apparatus according to any one of the first to third aspects, wherein the length of the cleaning unit in the direction intersecting the transport direction is the transport direction of the adhesive belt. It is more than the length of the direction which cross | intersects.

  According to this aspect, the entire adhesive belt can be washed in a direction that intersects the transport direction. Moreover, since the said adhesive belt can be wash | cleaned with a wide contact surface, the washing | cleaning nonuniformity of the said adhesive belt can be suppressed effectively.

  The recording apparatus according to a fifth aspect of the present invention is the recording apparatus according to any one of the first to fourth aspects, wherein the cleaning unit is a cleaning roller whose direction of rotation axis is a direction intersecting the transport direction. It is characterized by.

  According to this aspect, it is possible to use a cleaning mechanism having a high cleaning capability with a simple configuration.

  A recording method according to a sixth aspect of the present invention includes an adhesive belt on which a recording medium is placed, a conveyance mechanism that can intermittently convey the recording medium, and a direction that intersects the conveyance direction of the recording medium. A recording apparatus comprising: a recording mechanism for reciprocally scanning the recording head; and a cleaning mechanism having a cleaning unit that contacts the adhesive belt and a pressing unit that presses the cleaning unit against the adhesive belt. In the recording method performed using the pressing unit, the pressing force at the time of movement of the adhesive belt accompanying the intermittent conveyance is larger than the pressing force at the time of stopping the adhesive belt accompanying the intermittent conveyance. As described above, it has a pressing step of pressing the cleaning unit against the adhesive belt.

  According to this aspect, the pressing portion is configured so that the pressing force when the adhesive belt is moved due to the intermittent conveyance is larger than the pressing force when the adhesive belt is stopped due to the intermittent conveyance. Press the cleaning unit against the adhesive belt. For this reason, it is possible to suppress uneven cleaning of the adhesive belt.

1 is a schematic side view illustrating a recording apparatus according to an embodiment of the invention. 1 is a schematic diagram illustrating a main part of a recording apparatus according to an embodiment of the present invention. 1 is a block diagram of a recording apparatus according to an embodiment of the present invention. FIG. 4 is a diagram for explaining a control method of a control unit of the recording apparatus according to an embodiment of the invention. The flowchart showing the Example of the recording method of this invention.

[Example] (FIGS. 1 to 4)
Hereinafter, a recording apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
First, a recording apparatus according to an embodiment of the present invention will be described.
FIG. 1 is a schematic side view of a recording apparatus 1 according to an embodiment of the present invention.

  The recording apparatus 1 of the present embodiment includes a set unit 2 that can send out a roll R1 of a recording medium P for recording. Further, a pressure roller 12 that presses and attaches the recording medium P to an adhesive belt 10 as a movable belt, and a transport mechanism 3 that transports the recording medium P in the transport direction A by the adhesive belt 10 are provided. Yes. In addition, a recording mechanism 4 is provided that records the recording head 7 by reciprocating scanning in a scanning direction B that intersects the conveyance direction A of the recording medium P. Further, a cleaning mechanism 15 for the adhesive belt 10 is provided. Furthermore, a winding mechanism 18 having a winding shaft 17 for winding the recording medium P and a cutter 16 for cutting the recording medium P being wound is provided.

  The set unit 2 includes a rotating shaft 5 that also serves as a setting position of the roll R1 of the recording medium P for recording, and conveys the recording medium P from the roll R1 set on the rotating shaft 5 via the driven roller 6. The structure can be sent to the mechanism 3. When the recording medium P is sent out to the transport mechanism 3, the rotating shaft 5 rotates in the rotation direction C.

  The transport mechanism 3 includes an adhesive belt 10 on which the recording medium P sent out from the setting unit 2 is placed and transported, a transport roller 8 that moves the adhesive belt 10, and a driven roller 9. The recording medium P is pressed and attached to the adhesive belt 10 by the pressure roller 12 and placed. When the recording medium P is transported, the transport roller 8 rotates in the rotation direction C.

The recording mechanism 4 includes a recording head 7, a carriage (not shown) on which the recording head 7 is mounted, and a carriage motor 26 (see FIG. 3) that reciprocates the carriage in the scanning direction B. In FIG. 1, the scanning direction B is a direction perpendicular to the paper surface.
During recording, recording is performed by reciprocating the recording head 7. During the recording scanning (when the recording head is moving), the transport mechanism 3 stops the transport of the recording medium P. In other words, during recording, the reciprocating scanning of the recording head 7 and the conveyance of the recording medium P are alternately performed. That is, during recording, the conveyance mechanism 3 intermittently conveys the recording medium P corresponding to the reciprocating scanning of the recording head 7.

  The cleaning mechanism 15 of the adhesive belt 10 includes a cleaning unit 13 configured by connecting a plurality of cleaning rollers in the rotation axis direction, a tray 14 containing a cleaning agent for cleaning the cleaning unit 13, and a cleaning unit 13. And a cylinder 19 as a pressing portion that presses against the adhesive belt 10. The cylinder 19 can not only press the cleaning unit 13 against the adhesive belt 10, but can also separate the cleaning unit 13 from the adhesive belt 10.

  The cleaning unit 13 is composed of a rotating brush and is pressed against the adhesive belt 10 by a cylinder 19, and the pressing force is controlled by the control unit 20 (see FIG. 3). The control unit 20 is connected to the cylinder 19, the recording mechanism 4, the transport mechanism 3, and the like, and performs control to intermittently transport the recording medium corresponding to the reciprocating scanning of the recording head 7. And with this control, rather than the pressing force of the cleaning unit 13 to the adhesive belt 10 when the adhesive belt 10 is stopped due to intermittent conveyance, the cleaning unit 13 is moved when the adhesive belt 10 is moved due to intermittent conveyance. The cylinder 19 is controlled so that the pressing force to the adhesive belt 10 becomes larger.

  The winding mechanism 18 is a mechanism that winds the recording medium P on which recording has been performed and is transported from the transport mechanism 3 via the driven roller 11. A winding paper tube or the like is set on the winding shaft 17. By winding the recording medium P around this, the recording medium P can be wound as a roll R2.

FIG. 2 is a schematic view of the adhesive belt 10 and the cleaning roller 13 which are the main parts of the recording apparatus 1 according to an embodiment of the present invention as seen from the lower surface.
FIG. 2 is a schematic view of the adhesive belt 10 as viewed from the lower surface. Therefore, the moving direction D on the lower surface of the adhesive belt 10 is opposite to the conveying direction A in which the recording medium P is placed and conveyed.

  As shown in FIG. 2, in the recording apparatus 1 of the present embodiment, the length L <b> 2 in the direction along the scanning direction B, which is a direction intersecting the transport direction A (movement direction D) of the cleaning unit 13, is adhesive. The length L1 in the scanning direction B of the conductive belt 10 is equal to or longer than L1. For this reason, the entire pressure-sensitive adhesive belt 10 can be washed in a direction crossing the transport direction A. Further, since the adhesive belt 10 can be cleaned with a wide contact surface, uneven cleaning of the adhesive belt 10 can be effectively suppressed.

Next, the electrical configuration of the recording apparatus 1 of the present embodiment will be described.
FIG. 3 is a block diagram of the recording apparatus 1 of the present embodiment.
The control unit 20 is provided with a CPU 21 that controls the entire recording apparatus 1. The CPU 21 is connected via a system bus 22 to a ROM 23 that stores various control programs executed by the CPU 21 and a RAM 24 that can temporarily store data. The CPU 21 is connected to a head driving unit 25 for driving the recording head 7 via the system bus 22.

The CPU 21 is connected via a system bus 22 to a motor drive unit 32 for driving a carriage motor 26, a conveyance motor 27, a delivery motor 28 and a take-up motor 29.
Here, the carriage motor 26 is a motor for moving the carriage on which the recording head 7 is mounted. Further, the transport motor 27 is a motor for driving the transport roller 8. The sending motor 28 is a rotating mechanism of the rotating shaft 5 and drives the rotating shaft 5 in order to send the recording medium P to the transport mechanism 3. The winding motor 29 is a drive motor for rotating the winding shaft 17.

Further, the CPU 21 is connected via a system bus 22 to a cutter driving unit 33 that drives the cutter 16 to cut the recording medium P.
Further, the CPU 21 transmits / receives data and signals to / from a monitor 34 and a control panel 35 provided in the recording apparatus 1 and an interface 31 for inputting recording data and the like from an external apparatus such as a PC. The input / output unit 30 is connected.

The CPU 21 is connected to the cylinder driving unit 36 via the system bus 22.
The control unit 20 is thus connected to the cylinder driving unit 36 (cylinder 19), the transport mechanism 3 (transport motor 27), and the recording mechanism 4 (recording head 7 and carriage motor 26) via the system bus 22 and the like. Yes. And the control part 20 per unit area at the time of the movement of the adhesive belt 10 per unit area at the time of the stop of the adhesive belt 10 accompanying intermittent conveyance, and the pressing time concerning the intermittent conveyance, and movement The pressing force of the cleaning unit 13 to the adhesive belt 10 by the cylinder 19 is controlled so that the difference between the product of the pressing force and the pressing time is reduced.

Next, a control method of the control unit 20 of the recording apparatus 1 of the present embodiment will be described.
FIG. 4 is a diagram for explaining a control method of the control unit 20 of the recording apparatus 1 according to the present embodiment.
4A shows a unit area of the adhesive belt 10 when the control unit 20 does not control the pressing force by the cylinder 19 (when the cleaning unit 13 continues to apply a certain pressing force to the adhesive belt 10). It is a graph showing the product of the pressing force applied to the hit and the pressing time. 4A to 4C, the horizontal axis represents time, and 0 to a, b to c, d to e, f to g, and h to i are adhesions accompanying intermittent conveyance. When the adhesive belt 10 is stopped, a to b, c to d, e to f, and g to h represent the time when the adhesive belt 10 is moved due to intermittent conveyance.

  As apparent from FIG. 4A, when the control unit 20 does not control the pressing force by the cylinder 19, the product of the pressing force per unit area when the adhesive belt 10 is stopped and the pressing time is It is clearly larger than the product of pressing force and pressing time per unit area when the adhesive belt 10 is moved.

FIG. 4B is a graph showing the pressing force of the cleaning unit 13 against the adhesive belt 10 when the control unit 20 controls the pressing force by the cylinder 19.
As shown in FIG. 4B, the control unit 20 has a larger pressing force when the adhesive belt 10 is moved due to intermittent conveyance than the pressing force when the adhesive belt 10 is stopped due to intermittent conveyance. Thus, the pressing force by the cylinder 19 is controlled so that the cleaning unit 13 presses the adhesive belt 10. In the recording apparatus 1 of the present embodiment, specifically, the pressing force when the adhesive belt 10 is moved due to intermittent conveyance is made stronger than the pressing force when stopped.

4C shows the product of the pressing force and the pressing time per unit area of the adhesive belt 10 when the control unit 20 controls the pressing force by the cylinder 19 as shown in FIG. 4B. It is a graph showing.
As shown in FIG. 4C, the product of the pressing force per unit area when the adhesive belt 10 is stopped and the pressing time is the pressing force per unit area when the adhesive belt 10 is moved. There is no substantial difference between the product and the pressing time.
Note that, as in this embodiment, there is a configuration in which the product is controlled so that there is no substantial difference in the product of the pressing force and the pressing time per unit area of the adhesive belt 10 when the adhesive belt 10 is stopped and moved. Although most preferable, it may be controlled so as to reduce the difference between the two.

  The fact that there is no substantial difference in the product of the pressing force and the pressing time per unit area of the adhesive belt 10 when the adhesive belt 10 is stopped and moved is as follows, for example. If the stopping time when the adhesive belt 10 is stopped is 1 second with a pressing force of 1 kgf applied, it becomes 1 kgf · s. Also, when the adhesive belt 10 passes through the cleaning unit 13 when the adhesive belt 10 is moved with a pressing force of 10 kgf, the time for the adhesive belt 10 to pass per unit area (for example, 1 mm × 1 mm) is 0.1 second. 1 kgf · s.

[Example of Recording Method] (FIG. 5)
Next, a recording method according to an embodiment of the present invention will be described.
FIG. 5 is a flowchart showing a recording method according to an embodiment of the present invention.
Note that the recording method of this example is an example performed using the recording apparatus 1 of Example 1 described above.

  When recording data is input to the recording apparatus 1 as a recording start command, first, in step S110, the control unit 20 determines whether or not the adhesive belt 10 is moved due to intermittent conveyance of the recording medium. When the adhesive belt 10 is moved along with intermittent conveyance by performing recording, the process proceeds to step S120. On the other hand, if the adhesive belt 10 is not moved due to intermittent conveyance by not performing recording, the process proceeds to step S140.

In step S120, the control unit 20 controls the cylinder 19 via the cylinder driving unit 36 to increase the pressing force of the cleaning unit 13 against the adhesive belt 10, and the control unit 20 controls the transport mechanism 3. Thus, the adhesive belt 10 is moved. The moving distance of the adhesive belt 10 in this step is a distance corresponding to the conveyance distance of the recording medium P per conveyance conveyed corresponding to the reciprocating scanning of the recording head 7.
When the adhesive belt 10 moves by a predetermined moving distance, the control unit 20 stops the adhesive belt 10 by controlling the transport mechanism 3 in step S130, and the control unit 20 moves the cylinder through the cylinder driving unit 36. By controlling 19, the pressing force of the cleaning unit 13 against the adhesive belt 10 is returned. The pressing force returned in this step is the pressing force before being increased in step S120. Next, the process proceeds to step S140.

  In step S140, the control unit 20 determines whether the recording of the recording data input to the recording apparatus 1 has been completed. In this step, if it is determined that the recording has not been completed, steps S110 to S140 are repeated until it is determined that the recording has been completed. If it is determined that the recording has been completed, the recording method according to the present embodiment is terminated. .

(Modification 1)
In the recording apparatus 1 of the above embodiment, the cleaning unit 13 is a rotating brush, but an elastic body made of a porous water-absorbing material may be used.

(Modification 2)
As the cleaning unit 13, a cleaning brush configured by connecting a plurality of brushes in the rotation axis direction may be used.

(Modification 3)
A plurality of cleaning units 13 may be provided. In addition, the plurality of cleaning units 13 may be combined with one that can be driven or rotated by itself.

DESCRIPTION OF SYMBOLS 1 ... Recording device, 2 ... Set part, 3 ... Conveyance mechanism, 4 ... Recording mechanism,
5... Rotating shaft of the set unit 2, 6... Driven roller, 7... Recording head, 8.
9 ... driven roller, 10 ... adhesive belt, 11 ... driven roller, 12 ... pressure roller,
13 ... Cleaning unit, 14 ... Tray, 15 ... Cleaning mechanism, 16 ... Cutter,
17 ... winding shaft, 18 ... winding mechanism, 19 ... cylinder, 20 ... control unit, 21 ... CPU,
22 ... System bus, 23 ... ROM, 24 ... RAM, 25 ... Head drive unit,
26 ... Carriage motor, 27 ... Conveyance motor, 28 ... Delivery motor,
29 ... winding motor, 30 ... input / output unit, 31 ... interface,
32 ... Motor drive unit, 33 ... Cutter drive unit, 34 ... Monitor,
35 ... Control panel, 36 ... Cylinder drive, P ... Recording medium

Claims (6)

A transport mechanism having an adhesive belt on which a recording medium is placed and capable of intermittently transporting the recording medium;
A recording mechanism for recording by reciprocating scanning of the recording head in a direction intersecting with the conveyance direction of the recording medium;
A cleaning mechanism having a cleaning unit that contacts the adhesive belt and a pressing unit that presses the cleaning unit against the adhesive belt,
The pressing unit moves the adhesive unit so that the pressing force when the adhesive belt is moved due to the intermittent conveyance is larger than the pressing force when the adhesive belt is stopped due to the intermittent conveyance. A recording apparatus that is pressed against a belt. The recording apparatus according to claim 1,
A recording apparatus comprising: a control unit that controls a pressing force by the pressing unit. The recording apparatus according to claim 2,
The control unit includes a product of a pressing force and a pressing time per unit area when the adhesive belt is stopped during the intermittent conveyance, and a unit area when the adhesive belt is moved during the intermittent conveyance. A recording apparatus, wherein the pressing force by the pressing portion is controlled so that a difference between the product of the pressing force and the pressing time is reduced. The recording apparatus according to any one of claims 1 to 3,
The recording apparatus according to claim 1, wherein a length of the cleaning unit in a direction crossing the transport direction is equal to or longer than a length of the adhesive belt in a direction crossing the transport direction. The recording apparatus according to any one of claims 1 to 4,
The recording apparatus according to claim 1, wherein the cleaning unit is a cleaning roller whose direction of rotation axis is a direction intersecting the transport direction. A transport mechanism having an adhesive belt on which a recording medium is placed and capable of intermittently transporting the recording medium, and a recording mechanism for recording the recording head by reciprocating scanning in a direction crossing the transport direction of the recording medium And a cleaning mechanism having a cleaning unit that contacts the adhesive belt and a pressing unit that presses the cleaning unit against the adhesive belt, and a recording method that uses a recording device comprising:
The pressing unit causes the pressure-sensitive adhesive force when the adhesive belt is moved due to the intermittent conveyance to be larger than the pressure force when the adhesive belt is stopped due to the intermittent conveyance. A recording method comprising a pressing step of pressing the belt.

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