JPS56164372A - Copying machine - Google Patents

Copying machine

Info

Publication number
JPS56164372A
JPS56164372A JP6869480A JP6869480A JPS56164372A JP S56164372 A JPS56164372 A JP S56164372A JP 6869480 A JP6869480 A JP 6869480A JP 6869480 A JP6869480 A JP 6869480A JP S56164372 A JPS56164372 A JP S56164372A
Authority
JP
Japan
Prior art keywords
roller
transfer
belt
pushed
drum
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.)
Pending
Application number
JP6869480A
Other languages
Japanese (ja)
Inventor
Noriyoshi Tarumi
Shoichi Ogiso
Hiroshi Tsuchiya
Koichi Gunji
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP6869480A priority Critical patent/JPS56164372A/en
Publication of JPS56164372A publication Critical patent/JPS56164372A/en
Pending 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
    • G03G15/14—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
    • G03G15/1605—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 at least one intermediate support
    • G03G15/1615—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 at least one intermediate support relating to the driving mechanism for the intermediate support, e.g. gears, couplings, belt tensioning
    • 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
    • G03G2215/00135—Handling of parts of the apparatus
    • G03G2215/00139—Belt
    • G03G2215/00143—Meandering prevention
    • G03G2215/00156—Meandering prevention by controlling drive mechanism

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To prevent a rise in the surface temperature of the drum of a photosensitive body and meandering of a belt to maintain always a good picture by providing a transfer roller and a press roller for transfer and fixation with a means to release the pressing respectively. CONSTITUTION:A belt for transfer intermediately 12 is hung across a transfer roller 11, a transfer fixation roller 14, tension rollers 15, 16, and a press roller 17 is pushed to a roller 14. The transfer roller 11 is pushed and released by a cam 131 via levers 132, 135 and a spring 134. The roller 17 is also constructed in the same way. With this constitution, the roller 11 is pushed and released by a cam 131 rotating at the same speed as a charge keeping drum 2 in accordance with the time of a toner image of said drum 2 is trasferred to the belt 12 and the transfer finishes. When transfer and fixation to an ordinary paper 18 it is pushed and released in the same way. hereby, the belt 2 is not pushed continuously, so that a rise of the surface temperature of the drum 2 and meandering of the belt 2 are prevented and a good picture image is always obtained.
JP6869480A 1980-05-22 1980-05-22 Copying machine Pending JPS56164372A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6869480A JPS56164372A (en) 1980-05-22 1980-05-22 Copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6869480A JPS56164372A (en) 1980-05-22 1980-05-22 Copying machine

Publications (1)

Publication Number Publication Date
JPS56164372A true JPS56164372A (en) 1981-12-17

Family

ID=13381118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6869480A Pending JPS56164372A (en) 1980-05-22 1980-05-22 Copying machine

Country Status (1)

Country Link
JP (1) JPS56164372A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5997167A (en) * 1982-11-26 1984-06-04 Konishiroku Photo Ind Co Ltd Electrostatic recorder
US4515460A (en) * 1982-04-21 1985-05-07 Canon Kabushiki Kaisha Device for transferring color toner images
US5070366A (en) * 1989-03-10 1991-12-03 Canon Kabushiki Kaisha Image forming apparatus featuring a constant contact-pressure drive
EP0663630A1 (en) * 1994-01-12 1995-07-19 Hewlett-Packard Company Mechanism for controlling roller contact in a liquid electrophotography system
US5534984A (en) * 1994-03-02 1996-07-09 Fujitsu Limited Recording apparatus having a transfer drum shifting device
EP0733957A2 (en) * 1992-01-22 1996-09-25 Ricoh Company, Ltd Image transferring device with charging control

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515460A (en) * 1982-04-21 1985-05-07 Canon Kabushiki Kaisha Device for transferring color toner images
JPS5997167A (en) * 1982-11-26 1984-06-04 Konishiroku Photo Ind Co Ltd Electrostatic recorder
US5070366A (en) * 1989-03-10 1991-12-03 Canon Kabushiki Kaisha Image forming apparatus featuring a constant contact-pressure drive
EP0733957A2 (en) * 1992-01-22 1996-09-25 Ricoh Company, Ltd Image transferring device with charging control
EP0733957A3 (en) * 1992-01-22 1998-01-07 Ricoh Company, Ltd Image transferring device with charging control
EP0663630A1 (en) * 1994-01-12 1995-07-19 Hewlett-Packard Company Mechanism for controlling roller contact in a liquid electrophotography system
US5534984A (en) * 1994-03-02 1996-07-09 Fujitsu Limited Recording apparatus having a transfer drum shifting device
US5875382A (en) * 1994-03-02 1999-02-23 Fujitsu Limited Recording apparatus having a movable cleaner blade

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