JPS6452175A - Color copying device - Google Patents

Color copying device

Info

Publication number
JPS6452175A
JPS6452175A JP62208325A JP20832587A JPS6452175A JP S6452175 A JPS6452175 A JP S6452175A JP 62208325 A JP62208325 A JP 62208325A JP 20832587 A JP20832587 A JP 20832587A JP S6452175 A JPS6452175 A JP S6452175A
Authority
JP
Japan
Prior art keywords
belt
gears
pulleys
those
peripheral length
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
JP62208325A
Other languages
Japanese (ja)
Other versions
JP2559420B2 (en
Inventor
Minoru Suzuki
Hideya Furuta
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
Priority to JP62208325A priority Critical patent/JP2559420B2/en
Publication of JPS6452175A publication Critical patent/JPS6452175A/en
Application granted granted Critical
Publication of JP2559420B2 publication Critical patent/JP2559420B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Color Electrophotography (AREA)

Abstract

PURPOSE:To prevent images in varying colors from being dislocated by attaining an equation nl1=l2=ml3 (m and n: integer) where the peripheral length of a photosensitive body driving roller is l1, that of a scanner driving belt l2, and those of pulleys for the scanner driving belt l3. CONSTITUTION:The number of gears of the scanner driving belt 21 reciprocating an original placing table and possessing the peripheral length l2 is set integer- multiple greater than the number of gears arranged in the peripheral length l3 of the pulleys 22 and 23 for the scanner driving belt. The number of gears for a belt 26 is set integer-multiple greater than those of the pulleys 24 and 25, while the numbers of gears 28, 31 and 32 are set at the same. Moreover the peripheral length l2 of the belt 21 is set integer multiple greater than that l1 of the photosensitive body driving roller 30. If a fixed point P on a device along the belt 21 is an image forming start point when a photosensitive body belt 8 is exposed to copy colorfully, phases of the belts 21 and 26, those of the gears 28, 32 and 31, those of the pulleys 22-25 and that of the roller 30 are all the same in 1st-3rd colors when a prescribed point on the belt 21 corresponding to an exposure start point passes by a point P; therefore the dislocation of images in three colors is eliminated.
JP62208325A 1987-08-24 1987-08-24 Color copying machine Expired - Fee Related JP2559420B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62208325A JP2559420B2 (en) 1987-08-24 1987-08-24 Color copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62208325A JP2559420B2 (en) 1987-08-24 1987-08-24 Color copying machine

Publications (2)

Publication Number Publication Date
JPS6452175A true JPS6452175A (en) 1989-02-28
JP2559420B2 JP2559420B2 (en) 1996-12-04

Family

ID=16554395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62208325A Expired - Fee Related JP2559420B2 (en) 1987-08-24 1987-08-24 Color copying machine

Country Status (1)

Country Link
JP (1) JP2559420B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0523870A2 (en) * 1991-07-17 1993-01-20 Xerox Corporation Colour registration control by component synchronisation in colour printers
US5243396A (en) * 1992-06-17 1993-09-07 Xerox Corporation Design rules for image forming devices to prevent image distortion and misregistration
US5473421A (en) * 1993-03-16 1995-12-05 Canon Kabushiki Kaisha Multicolor image forming apparatus for forming a multicolor image on a transfer material
US7167664B2 (en) * 2003-12-01 2007-01-23 Seiko Epson Corporation Image forming apparatus where image write-to-transfer time is set integer times of a rotation period of idler pulley

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0523870A2 (en) * 1991-07-17 1993-01-20 Xerox Corporation Colour registration control by component synchronisation in colour printers
US5287160A (en) * 1991-07-17 1994-02-15 Xerox Corporation Registration improvement by component synchronization in color printers
US5243396A (en) * 1992-06-17 1993-09-07 Xerox Corporation Design rules for image forming devices to prevent image distortion and misregistration
US5473421A (en) * 1993-03-16 1995-12-05 Canon Kabushiki Kaisha Multicolor image forming apparatus for forming a multicolor image on a transfer material
US7167664B2 (en) * 2003-12-01 2007-01-23 Seiko Epson Corporation Image forming apparatus where image write-to-transfer time is set integer times of a rotation period of idler pulley

Also Published As

Publication number Publication date
JP2559420B2 (en) 1996-12-04

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees