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EP0389229A3 - Image forming apparatus - Google Patents

Image forming apparatus Download PDF

Info

Publication number
EP0389229A3
EP0389229A3 EP19900302946 EP90302946A EP0389229A3 EP 0389229 A3 EP0389229 A3 EP 0389229A3 EP 19900302946 EP19900302946 EP 19900302946 EP 90302946 A EP90302946 A EP 90302946A EP 0389229 A3 EP0389229 A3 EP 0389229A3
Authority
EP
European Patent Office
Prior art keywords
developer
forming apparatus
image forming
latent image
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19900302946
Other languages
German (de)
French (fr)
Other versions
EP0389229A2 (en
Inventor
Satoshi Matsumoto
Shinobu Nakata
Hideshi Ishihara
Hiroshi Terada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP1069665A external-priority patent/JPH02248969A/en
Priority claimed from JP1095749A external-priority patent/JPH0789252B2/en
Priority claimed from JP1236156A external-priority patent/JPH0780312B2/en
Priority claimed from JP24125289A external-priority patent/JPH03102364A/en
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP0389229A2 publication Critical patent/EP0389229A2/en
Publication of EP0389229A3 publication Critical patent/EP0389229A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0142—Structure of complete machines
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0142—Structure of complete machines
    • G03G15/0178—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image
    • G03G15/0194—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image primary transfer to the final recording medium
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/34—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner
    • G03G15/344—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner by selectively transferring the powder to the recording medium, e.g. by using a LED array
    • G03G15/348—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner by selectively transferring the powder to the recording medium, e.g. by using a LED array using a stylus or a multi-styli array

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

An image forming apparatus includes a developer layer former (3) which charges developer to have a predetermined polarity in a developer unit (4) and forms a uniform thin layer of the developer on a developer carrier (1), an ion irradiator (6) which irradiates ions towards the developer on the developer carrier (1) partly so as to form a reversely charged latent image thereon in accordance with recording signals (5), and a transfer unit (8) which transfers the part of the developer on the developer carrier (1) corresponding to the latent image onto a recording medium (9) directly.
EP19900302946 1989-03-22 1990-03-19 Image forming apparatus Withdrawn EP0389229A3 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP1069665A JPH02248969A (en) 1989-03-22 1989-03-22 Image forming device
JP69665/89 1989-03-22
JP95749/89 1989-04-14
JP1095749A JPH0789252B2 (en) 1989-04-14 1989-04-14 Image forming device
JP1236156A JPH0780312B2 (en) 1989-09-12 1989-09-12 Image forming device
JP236156/89 1989-09-12
JP241252/89 1989-09-18
JP24125289A JPH03102364A (en) 1989-09-18 1989-09-18 Image forming device

Publications (2)

Publication Number Publication Date
EP0389229A2 EP0389229A2 (en) 1990-09-26
EP0389229A3 true EP0389229A3 (en) 1991-05-02

Family

ID=27465163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900302946 Withdrawn EP0389229A3 (en) 1989-03-22 1990-03-19 Image forming apparatus

Country Status (2)

Country Link
EP (1) EP0389229A3 (en)
KR (1) KR900014945A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6176568B1 (en) 1997-02-18 2001-01-23 Array Printers Ab Direct printing method with improved control function

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE503955C2 (en) * 1994-09-19 1996-10-07 Array Printers Ab Method and apparatus for feeding toner particles in a printer unit
WO1996018506A1 (en) * 1994-12-15 1996-06-20 Array Printers Ab Serial printing system with direct deposition of powder particles
US6000786A (en) * 1995-09-19 1999-12-14 Array Printers Publ. Ab Method and apparatus for using dual print zones to enhance print quality
SE506219C2 (en) * 1996-03-12 1997-11-24 Ito Engineering Ab Toner-jet printing plant with aligned matrix unit
SE506484C2 (en) * 1996-03-12 1997-12-22 Ito Engineering Ab Toner-jet printing plant with electrically shielded matrix
SE506483C2 (en) * 1996-03-12 1997-12-22 Ito Engineering Ab Toner-jet printing press
US5971526A (en) * 1996-04-19 1999-10-26 Array Printers Ab Method and apparatus for reducing cross coupling and dot deflection in an image recording apparatus
US6011944A (en) * 1996-12-05 2000-01-04 Array Printers Ab Printhead structure for improved dot size control in direct electrostatic image recording devices
EP0964790A1 (en) * 1997-03-10 1999-12-22 Array Printers Ab Direct printing method with improved control function
US6257708B1 (en) 1997-12-19 2001-07-10 Array Printers Ab Direct electrostatic printing apparatus and method for controlling dot position using deflection electrodes
US6030070A (en) * 1997-12-19 2000-02-29 Array Printers Ab Direct electrostatic printing method and apparatus
US6086186A (en) * 1997-12-19 2000-07-11 Array Printers Ab Apparatus for positioning a control electrode array in a direct electrostatic printing device
US6074045A (en) * 1998-03-04 2000-06-13 Array Printers Ab Printhead structure in an image recording device
US6174048B1 (en) 1998-03-06 2001-01-16 Array Printers Ab Direct electrostatic printing method and apparatus with apparent enhanced print resolution
US6081283A (en) * 1998-03-19 2000-06-27 Array Printers Ab Direct electrostatic printing method and apparatus
US6102525A (en) * 1998-03-19 2000-08-15 Array Printers Ab Method and apparatus for controlling the print image density in a direct electrostatic printing apparatus
EP0965894B1 (en) 1998-06-15 2002-03-27 Array Printers Ab Direct electrostatic printing method and apparatus
EP0965455A1 (en) 1998-06-15 1999-12-22 Array Printers Ab Direct electrostatic printing method and apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3143968A1 (en) * 1980-11-05 1982-06-09 Konishiroku Photo Industry Co., Ltd., Tokyo ELECTROSTATIC REPLACEMENT DEVICE
US4544935A (en) * 1981-06-11 1985-10-01 Ricoh Company, Ltd. Recording apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06125166A (en) * 1992-10-12 1994-05-06 Sony Corp Circuit board
JPH06165270A (en) * 1992-11-27 1994-06-10 Matsushita Electric Ind Co Ltd Program remote control transmitter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3143968A1 (en) * 1980-11-05 1982-06-09 Konishiroku Photo Industry Co., Ltd., Tokyo ELECTROSTATIC REPLACEMENT DEVICE
US4544935A (en) * 1981-06-11 1985-10-01 Ricoh Company, Ltd. Recording apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 177 (P-470)(2233), 21 June 1986; & JP - A - 6125166 (FUJI XEROX CO. LTD.) 04.02.1986 *
PATENT ABSTRACTS OF JAPAN vol. 10, no. 232 (P-486)(2288), 12 August 1986; & JP - A - 6165270 (FUJI XEROX CO. LTD.) 03.04.1986 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6176568B1 (en) 1997-02-18 2001-01-23 Array Printers Ab Direct printing method with improved control function

Also Published As

Publication number Publication date
KR900014945A (en) 1990-10-25
EP0389229A2 (en) 1990-09-26

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