JPS5691245A - Driving method of copying machine - Google Patents
Driving method of copying machineInfo
- Publication number
- JPS5691245A JPS5691245A JP16874879A JP16874879A JPS5691245A JP S5691245 A JPS5691245 A JP S5691245A JP 16874879 A JP16874879 A JP 16874879A JP 16874879 A JP16874879 A JP 16874879A JP S5691245 A JPS5691245 A JP S5691245A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- frequency
- pulses
- drum
- speed
- 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
- Combination Of More Than One Step In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE:To enable the selection freedom degree of the diameter of a photosensitive drum or the like by detecting the speed of the drum with voltage, converting this to the pulses of the frequency corresponding to said voltage and driving stepping motors with these pulses. CONSTITUTION:The pulses of the frequency proportional to the rotating speed of a photosensitive drum 5 is obtained by the encoder 16 directly coupled to the drum 5, and are converted to the voltage propotional to said frequency by a frequency/voltage converter 19 whereby the speed of the drum 5 is detected as voltage. This voltage is amplified 20 and is converted to pulses of required frequency by a voltage/ frequency converter 21. Stepping motors 17, 18 are driven by these pulses in a driving circuit 22. The frequency of the controlling pulses of the stepping motors 17, 18 are variable by adjusting the gain of the amplifier 20 with a gain-adjusting variable resistor 24, and no matter an original drum 1, feed roller 9 and discharge roller 11 are of what diameters, these are driven at the speeds synchronized to the speed of the drum 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16874879A JPS5691245A (en) | 1979-12-25 | 1979-12-25 | Driving method of copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16874879A JPS5691245A (en) | 1979-12-25 | 1979-12-25 | Driving method of copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5691245A true JPS5691245A (en) | 1981-07-24 |
Family
ID=15873682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16874879A Pending JPS5691245A (en) | 1979-12-25 | 1979-12-25 | Driving method of copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5691245A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57210353A (en) * | 1981-06-16 | 1982-12-23 | Toshiba Corp | Image forming device |
JPS58136059A (en) * | 1982-02-08 | 1983-08-12 | Fuji Xerox Co Ltd | Speed controller of copying machine |
JPH0687964U (en) * | 1990-12-27 | 1994-12-22 | 株式会社東芝 | Image forming device |
-
1979
- 1979-12-25 JP JP16874879A patent/JPS5691245A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57210353A (en) * | 1981-06-16 | 1982-12-23 | Toshiba Corp | Image forming device |
JPS58136059A (en) * | 1982-02-08 | 1983-08-12 | Fuji Xerox Co Ltd | Speed controller of copying machine |
JPH0687964U (en) * | 1990-12-27 | 1994-12-22 | 株式会社東芝 | Image forming device |
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