JPS57122458A - Scanner in copying machine - Google Patents
Scanner in copying machineInfo
- Publication number
- JPS57122458A JPS57122458A JP819181A JP819181A JPS57122458A JP S57122458 A JPS57122458 A JP S57122458A JP 819181 A JP819181 A JP 819181A JP 819181 A JP819181 A JP 819181A JP S57122458 A JPS57122458 A JP S57122458A
- Authority
- JP
- Japan
- Prior art keywords
- turned
- rack
- gear
- slide
- motor
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/522—Projection optics
- G03B27/525—Projection optics for slit exposure
- G03B27/526—Projection optics for slit exposure in which the projection optics move
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
PURPOSE:To obtain a device which is simple to change scanning distances and of which moving parts are light in weight with respect to a mangle mechanism performing lens driving. CONSTITUTION:If an effective linear distance is defined as l1 in the case of narrow scanning width, this is the length of the rack teeth combining mangle racks 1, 2. As a motor 21 runs, a timing pulley 20 turns in an arrow direction, and a pulley 10 turns simultaneously as well. A pinion gear 3 is turned, and a slide 13 is guided by guide rods 16, 17 and moves closer to the side of the motor 21. An arm 23 for extension is turned in the direction (b). Further, when the gear 3 is turned to complete the shifting of the turned l1, it meshes with the tooth profile in the curved part of the rack 1. During this time, the guide roller rotated and moved in contact with the bottom surface of a guide plate 38 moves along the curved surface of the guide plate along with the rotating movement of a shaft 4, and passes the curved part integrally with the meshing of the gear 3 with the internal teeth of the rack 1. In this way, the required movement is transmitted to the slide 13.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP819181A JPS57122458A (en) | 1981-01-22 | 1981-01-22 | Scanner in copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP819181A JPS57122458A (en) | 1981-01-22 | 1981-01-22 | Scanner in copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57122458A true JPS57122458A (en) | 1982-07-30 |
Family
ID=11686388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP819181A Pending JPS57122458A (en) | 1981-01-22 | 1981-01-22 | Scanner in copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57122458A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0180143A2 (en) * | 1984-10-29 | 1986-05-07 | Kabushiki Kaisha Toshiba | Image forming apparatus |
JPS6432556U (en) * | 1987-08-21 | 1989-03-01 | ||
JPH04346331A (en) * | 1991-05-23 | 1992-12-02 | Sharp Corp | Original table driving device and original table moving type copying machine |
EP0552757A2 (en) * | 1992-01-21 | 1993-07-28 | Sharp Kabushiki Kaisha | A document platen driving device |
-
1981
- 1981-01-22 JP JP819181A patent/JPS57122458A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0180143A2 (en) * | 1984-10-29 | 1986-05-07 | Kabushiki Kaisha Toshiba | Image forming apparatus |
JPS6432556U (en) * | 1987-08-21 | 1989-03-01 | ||
JPH04346331A (en) * | 1991-05-23 | 1992-12-02 | Sharp Corp | Original table driving device and original table moving type copying machine |
EP0552757A2 (en) * | 1992-01-21 | 1993-07-28 | Sharp Kabushiki Kaisha | A document platen driving device |
US5267002A (en) * | 1992-01-21 | 1993-11-30 | Sharp Kabushiki Kaisha | Document platen driving device |
EP0552757A3 (en) * | 1992-01-21 | 1995-01-11 | Sharp Kk | A document platen driving device |
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