EP0281055A3 - Image forming apparatus and control system therefor - Google Patents

Image forming apparatus and control system therefor Download PDF

Info

Publication number
EP0281055A3
EP0281055A3 EP88103008A EP88103008A EP0281055A3 EP 0281055 A3 EP0281055 A3 EP 0281055A3 EP 88103008 A EP88103008 A EP 88103008A EP 88103008 A EP88103008 A EP 88103008A EP 0281055 A3 EP0281055 A3 EP 0281055A3
Authority
EP
European Patent Office
Prior art keywords
control system
image forming
forming apparatus
system therefor
therefor
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.)
Granted
Application number
EP88103008A
Other versions
EP0281055A2 (en
EP0281055B1 (en
Inventor
Nobuo Kasahara
Tosio Nakahara
Masayoshi Watanuki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of EP0281055A2 publication Critical patent/EP0281055A2/en
Publication of EP0281055A3 publication Critical patent/EP0281055A3/en
Application granted granted Critical
Publication of EP0281055B1 publication Critical patent/EP0281055B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • 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
    • G03G15/0105—Details of unit
    • G03G15/0131—Details of unit for transferring a pattern to a second base
    • 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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/163—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap
    • G03G15/1635—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap the field being produced by laying down an electrostatic charge behind the base or the recording member, e.g. by a corona device
    • G03G15/165—Arrangements for supporting or transporting the second base in the transfer area, e.g. guides
    • G03G15/1655—Arrangements for supporting or transporting the second base in the transfer area, e.g. guides comprising a rotatable holding member to which the second base is attached or attracted, e.g. screen transfer holding drum
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/01—Apparatus for electrophotographic processes for producing multicoloured copies
    • G03G2215/019—Structural features of the multicolour image forming apparatus
    • G03G2215/0196—Recording medium carrying member with speed switching

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Color Electrophotography (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
EP19880103008 1987-03-02 1988-02-29 Image forming apparatus and control system therefor Expired - Lifetime EP0281055B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62046995A JPS63212961A (en) 1987-03-02 1987-03-02 Color image forming device
JP46995/87 1987-03-02

Publications (3)

Publication Number Publication Date
EP0281055A2 EP0281055A2 (en) 1988-09-07
EP0281055A3 true EP0281055A3 (en) 1990-06-06
EP0281055B1 EP0281055B1 (en) 1993-08-11

Family

ID=12762775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880103008 Expired - Lifetime EP0281055B1 (en) 1987-03-02 1988-02-29 Image forming apparatus and control system therefor

Country Status (3)

Country Link
EP (1) EP0281055B1 (en)
JP (1) JPS63212961A (en)
DE (1) DE3883024T2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0268573A (en) * 1988-09-02 1990-03-08 Ricoh Co Ltd Black-and-white and color copying machine
EP0471058B1 (en) * 1990-03-05 1994-10-05 Eastman Kodak Company Multicolor image forming method and apparatus
US5043761A (en) * 1990-03-09 1991-08-27 Eastman Kodak Company Multicolor image forming apparatus having transfer roller for registering single color images
US5287160A (en) * 1991-07-17 1994-02-15 Xerox Corporation Registration improvement by component synchronization in color printers
JPH0619338A (en) * 1992-06-29 1994-01-28 Canon Inc Color image forming device
JP3256010B2 (en) * 1992-12-22 2002-02-12 キヤノン株式会社 Image forming device
EP1141785B1 (en) 1998-12-04 2004-08-25 Océ Printing Systems GmbH Electrographic printing device with a sensor for detecting slipping

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260241A (en) * 1978-05-17 1981-04-07 Canon Kabushiki Kaisha Copying apparatus
DE3704583A1 (en) * 1986-02-13 1987-08-27 Ricoh Kk CONTROL DEVICE FOR A COLOR COPIER
US4705386A (en) * 1986-05-12 1987-11-10 Shinko Electric Co., Ltd. Color copying machine
US4766463A (en) * 1986-06-20 1988-08-23 Ricoh Company, Ltd. Image forming apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228266A (en) * 1983-06-08 1984-12-21 Fuji Xerox Co Ltd Exposure position controller for color copying machine
JPS60218673A (en) * 1984-04-16 1985-11-01 Fuji Xerox Co Ltd Color copying machine
JPS61217076A (en) * 1985-03-22 1986-09-26 Canon Inc Color image forming device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260241A (en) * 1978-05-17 1981-04-07 Canon Kabushiki Kaisha Copying apparatus
DE3704583A1 (en) * 1986-02-13 1987-08-27 Ricoh Kk CONTROL DEVICE FOR A COLOR COPIER
US4733269A (en) * 1986-02-13 1988-03-22 Ricoh Company, Ltd. Control system for color copier
US4705386A (en) * 1986-05-12 1987-11-10 Shinko Electric Co., Ltd. Color copying machine
US4766463A (en) * 1986-06-20 1988-08-23 Ricoh Company, Ltd. Image forming apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 84 (P-442)(2141), 3 April 1986; & JP-A-60 218 673 (FUJI XEROX) 01.11.1985 *
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 105 (P-354)(1828), 9 May 1985; & JP-A-59 228 266 (FUJI XEROX) 21.12.1984 *

Also Published As

Publication number Publication date
DE3883024T2 (en) 1993-11-25
EP0281055A2 (en) 1988-09-07
EP0281055B1 (en) 1993-08-11
JPS63212961A (en) 1988-09-05
DE3883024D1 (en) 1993-09-16

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