JPS5545081A - Exposure scanning device - Google Patents
Exposure scanning deviceInfo
- Publication number
- JPS5545081A JPS5545081A JP11949178A JP11949178A JPS5545081A JP S5545081 A JPS5545081 A JP S5545081A JP 11949178 A JP11949178 A JP 11949178A JP 11949178 A JP11949178 A JP 11949178A JP S5545081 A JPS5545081 A JP S5545081A
- Authority
- JP
- Japan
- Prior art keywords
- clutch
- exposure scanning
- driven
- driving
- drive pulley
- 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
Landscapes
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
PURPOSE: To enable vibrations and noise of the device to be prevented without impairing scanning speed by providing the means of controlling the driving force of a reciprocating means for exposure scanning so that the reciprocating means is driven at a low acceleration speed at the starting of backward movement after exposure scanning.
CONSTITUTION: As current is supplied to an electromagnetic clutch 12, a drive pulley 5 is driven to start exposure scanning. At this same instant, a braking gear 13 is driven. On the other hand, a brake drum 15 is revolved by way of a rotary clutch 14 to act braking power upon the drive pulley 5. Hence, the electromagnetic clutch 12 assumes a half-clutch state, as a result of which the driving power of the initial stage of driving becomes smaller than that in a steady driving state, thus it is accelerated at a lower acceleration rate snd the vibrations are small and are rapidly converged in a short approach section. In the backward movement, the one- way rotating clutch 14 disengages and therefore the brake drum 15 does not rotate.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11949178A JPS5545081A (en) | 1978-09-28 | 1978-09-28 | Exposure scanning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11949178A JPS5545081A (en) | 1978-09-28 | 1978-09-28 | Exposure scanning device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15039584A Division JPS60121437A (en) | 1984-07-18 | 1984-07-18 | Exposure scanner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5545081A true JPS5545081A (en) | 1980-03-29 |
Family
ID=14762573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11949178A Pending JPS5545081A (en) | 1978-09-28 | 1978-09-28 | Exposure scanning device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5545081A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57164758U (en) * | 1981-04-14 | 1982-10-18 | ||
JPS57164757U (en) * | 1981-04-14 | 1982-10-18 | ||
JPS57171359A (en) * | 1981-04-06 | 1982-10-21 | Ibm | Mutual connector |
-
1978
- 1978-09-28 JP JP11949178A patent/JPS5545081A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57171359A (en) * | 1981-04-06 | 1982-10-21 | Ibm | Mutual connector |
JPH0321904B2 (en) * | 1981-04-06 | 1991-03-25 | Intaanashonaru Bijinesu Mashiinzu Corp | |
JPS57164758U (en) * | 1981-04-14 | 1982-10-18 | ||
JPS57164757U (en) * | 1981-04-14 | 1982-10-18 |
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