JPS6452175A - Color copying device - Google Patents
Color copying deviceInfo
- 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
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.
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)
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 |
-
1987
- 1987-08-24 JP JP62208325A patent/JP2559420B2/en not_active Expired - Fee Related
Cited By (5)
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 |