JPS5548763A - Exposure device of electrophotographic copier - Google Patents
Exposure device of electrophotographic copierInfo
- Publication number
- JPS5548763A JPS5548763A JP12197378A JP12197378A JPS5548763A JP S5548763 A JPS5548763 A JP S5548763A JP 12197378 A JP12197378 A JP 12197378A JP 12197378 A JP12197378 A JP 12197378A JP S5548763 A JPS5548763 A JP S5548763A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- elastic material
- photoreceptor
- material belt
- belt
- 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
- 239000013013 elastic material Substances 0.000 abstract 6
- 108091008695 photoreceptors Proteins 0.000 abstract 5
- 230000002093 peripheral effect Effects 0.000 abstract 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000004304 visual acuity Effects 0.000 abstract 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
PURPOSE: To prevent the displacement of the elastic material belt itself and achieve the improvement in the resolving power of images by so constituting the device that the speed of feed rollers is made slightly slower than the conveying speed of the belt and becomes equal when the photoreceptor is attracted to the elastic belt.
CONSTITUTION: The peripheral speed of feed rollers 15 is set at the speed slightly slower than the peripheral speed of an elastic belt 20 so that a photoreceptor 11 is prevented from floating on an elastic material belt 20. Hence, when the photoreceptor 11 advances while being attracted onto the elastic material belt 20, the conveying speed of the photoreceptor 11 becomes faster than the peripheral speed of the feed rollers 15. As a result, the feed rollers 15 become free to a sprocket 27 owing to the action of one-way clutch 29 and their speed becomes equal to the conveying speed of the photoreceptor 11. Since in this way the force for extending the elastic material belt 20 does not occur at the time when the elastic material belt 20 has stopped and therefore, displacing of the elastic material belt 20 after stopping does not occur and the occurrence of out-of-focus phenomenon may be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12197378A JPS5548763A (en) | 1978-10-05 | 1978-10-05 | Exposure device of electrophotographic copier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12197378A JPS5548763A (en) | 1978-10-05 | 1978-10-05 | Exposure device of electrophotographic copier |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7812179A Division JPS5550268A (en) | 1979-06-22 | 1979-06-22 | Exposure device of electrophotographic copier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5548763A true JPS5548763A (en) | 1980-04-08 |
Family
ID=14824437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12197378A Pending JPS5548763A (en) | 1978-10-05 | 1978-10-05 | Exposure device of electrophotographic copier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5548763A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550268A (en) * | 1979-06-22 | 1980-04-11 | Iwatsu Electric Co Ltd | Exposure device of electrophotographic copier |
| JPS57130340U (en) * | 1981-02-03 | 1982-08-13 | ||
| JPS5877343U (en) * | 1981-11-21 | 1983-05-25 | コニカ株式会社 | Exposure device for printing original plate |
-
1978
- 1978-10-05 JP JP12197378A patent/JPS5548763A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550268A (en) * | 1979-06-22 | 1980-04-11 | Iwatsu Electric Co Ltd | Exposure device of electrophotographic copier |
| JPS57130340U (en) * | 1981-02-03 | 1982-08-13 | ||
| JPS5877343U (en) * | 1981-11-21 | 1983-05-25 | コニカ株式会社 | Exposure device for printing original plate |
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