JPS57173858A - Scale factor adjusting device of copier - Google Patents
Scale factor adjusting device of copierInfo
- Publication number
- JPS57173858A JPS57173858A JP56058465A JP5846581A JPS57173858A JP S57173858 A JPS57173858 A JP S57173858A JP 56058465 A JP56058465 A JP 56058465A JP 5846581 A JP5846581 A JP 5846581A JP S57173858 A JPS57173858 A JP S57173858A
- Authority
- JP
- Japan
- Prior art keywords
- scale factor
- longitudinal direction
- scale
- copying
- lateral direction
- 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
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
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/041—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with variable magnification
Abstract
PURPOSE:To easily adjust so that scale factors in the longitudinal direction and the lateral direction become equal in a fixing process, by a simple constitution, by constituting so that one scale factor in the longitudinal direction or the lateral direction can be adjusted. CONSTITUTION:In case when fine adjustment of a copying scale factor is executed, an operator measures length in the longitudinal direction (feeding direction) and the lateral direction of a copying form printed on trial, checks a difference of the scale factor, calculates a correcting value in the feeding direction by concrete length so that the scale factors in both the directions become equal, and inputs a calculated correcting value to a fine adjustment indicating device 2. A controller 3 controls a speed changing device 4, converts a scanning speed of an original, executes its correction, and as a result, the scale factor in the feeding direction of the copying form is corrected so as to be equal to the scale factor in the vertical direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56058465A JPS57173858A (en) | 1981-04-20 | 1981-04-20 | Scale factor adjusting device of copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56058465A JPS57173858A (en) | 1981-04-20 | 1981-04-20 | Scale factor adjusting device of copier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57173858A true JPS57173858A (en) | 1982-10-26 |
JPH0119570B2 JPH0119570B2 (en) | 1989-04-12 |
Family
ID=13085172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56058465A Granted JPS57173858A (en) | 1981-04-20 | 1981-04-20 | Scale factor adjusting device of copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57173858A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6236677A (en) * | 1985-08-10 | 1987-02-17 | Canon Inc | Image forming device |
JPS6244728A (en) * | 1985-08-23 | 1987-02-26 | Fuji Xerox Co Ltd | Magnification fine adjusting device |
JPS63175877A (en) * | 1987-01-16 | 1988-07-20 | Toshiba Corp | Image forming device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49104621A (en) * | 1973-02-06 | 1974-10-03 | ||
JPS529436A (en) * | 1975-07-11 | 1977-01-25 | Canon Inc | Image forming device with variable magnification mechanism |
JPS52115217A (en) * | 1976-03-23 | 1977-09-27 | Canon Inc | Operation of variable multiplication optical system |
JPS52167939U (en) * | 1976-06-12 | 1977-12-20 | ||
JPS53126641U (en) * | 1977-03-15 | 1978-10-07 | ||
JPS5474733A (en) * | 1977-11-28 | 1979-06-15 | Ricoh Co Ltd | Positioning device for moving optical system of optical device of copying machines |
JPS55108652A (en) * | 1979-02-14 | 1980-08-21 | Katsuragawa Denki Kk | Orignal scanning control system for slit exposure type image recorder |
JPS56123567A (en) * | 1980-03-04 | 1981-09-28 | Ricoh Co Ltd | Magnification controller for optical system scanning mechanism |
-
1981
- 1981-04-20 JP JP56058465A patent/JPS57173858A/en active Granted
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49104621A (en) * | 1973-02-06 | 1974-10-03 | ||
JPS529436A (en) * | 1975-07-11 | 1977-01-25 | Canon Inc | Image forming device with variable magnification mechanism |
JPS52115217A (en) * | 1976-03-23 | 1977-09-27 | Canon Inc | Operation of variable multiplication optical system |
JPS52167939U (en) * | 1976-06-12 | 1977-12-20 | ||
JPS53126641U (en) * | 1977-03-15 | 1978-10-07 | ||
JPS5474733A (en) * | 1977-11-28 | 1979-06-15 | Ricoh Co Ltd | Positioning device for moving optical system of optical device of copying machines |
JPS55108652A (en) * | 1979-02-14 | 1980-08-21 | Katsuragawa Denki Kk | Orignal scanning control system for slit exposure type image recorder |
JPS56123567A (en) * | 1980-03-04 | 1981-09-28 | Ricoh Co Ltd | Magnification controller for optical system scanning mechanism |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6236677A (en) * | 1985-08-10 | 1987-02-17 | Canon Inc | Image forming device |
JPS6244728A (en) * | 1985-08-23 | 1987-02-26 | Fuji Xerox Co Ltd | Magnification fine adjusting device |
JPS63175877A (en) * | 1987-01-16 | 1988-07-20 | Toshiba Corp | Image forming device |
Also Published As
Publication number | Publication date |
---|---|
JPH0119570B2 (en) | 1989-04-12 |
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