JPS5624363A - Control circuit of copying machine - Google Patents
Control circuit of copying machineInfo
- Publication number
- JPS5624363A JPS5624363A JP10012679A JP10012679A JPS5624363A JP S5624363 A JPS5624363 A JP S5624363A JP 10012679 A JP10012679 A JP 10012679A JP 10012679 A JP10012679 A JP 10012679A JP S5624363 A JPS5624363 A JP S5624363A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- photoreceptor
- pulses
- voltage
- units
- 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
- Control Or Security For Electrophotography (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
PURPOSE:To control necessary units synchronously with simple structure, by controlling synchronous movement of the first and second units associated with each other, such as a photoreceptor and an optical scanner in accordance with the result of specified operation of voltage corresponding to speed change. CONSTITUTION:Phase comparator 1 compares phases of pulses oscillated by oscillator OSC1 to those of photoreceptor movement speed detection pulses of sensor PS1 through D type FF, and generates pulses Sa, Sb of width corresponding to coming sooner or later due to speed fluctuation of the photoreceptor. Integration circuit II generates voltage Ve corresponding to photoreceptor speed fluctuation in accordance with these pulses Sa or Sb, and applies it to addition circuit 3. On the other hand, voltage Vf corresponding to detection speed of an optical scanner and set speed Vr, etc. are also applied to circuit III, operation based on equation I is made, the scanner speed is controlled by the set speed of the first term of equation I and speed fluctuation of the photoreceptor of its second term, thus permitting the 2 units to be synchronously controlled with an simple electric structure. In addition, Rfo, R=R1=R2, and each represents set resistance value.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10012679A JPS5624363A (en) | 1979-08-06 | 1979-08-06 | Control circuit of copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10012679A JPS5624363A (en) | 1979-08-06 | 1979-08-06 | Control circuit of copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5624363A true JPS5624363A (en) | 1981-03-07 |
Family
ID=14265624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10012679A Pending JPS5624363A (en) | 1979-08-06 | 1979-08-06 | Control circuit of copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5624363A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS594613U (en) * | 1982-07-02 | 1984-01-12 | 株式会社トーキン | inductor |
JPS6159328U (en) * | 1984-09-25 | 1986-04-21 | ||
JPS61261754A (en) * | 1985-05-16 | 1986-11-19 | Shinko Electric Co Ltd | Image forming device |
US5345209A (en) * | 1992-07-30 | 1994-09-06 | Tdk Corporation | Adjustment system for a coil device |
US5347255A (en) * | 1992-05-07 | 1994-09-13 | Tdk Corporation | Variable inductance coil device |
US5382937A (en) * | 1992-07-30 | 1995-01-17 | Tdk Corporation | Coil device |
-
1979
- 1979-08-06 JP JP10012679A patent/JPS5624363A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS594613U (en) * | 1982-07-02 | 1984-01-12 | 株式会社トーキン | inductor |
JPH0452970Y2 (en) * | 1982-07-02 | 1992-12-14 | ||
JPS6159328U (en) * | 1984-09-25 | 1986-04-21 | ||
JPS61261754A (en) * | 1985-05-16 | 1986-11-19 | Shinko Electric Co Ltd | Image forming device |
US5347255A (en) * | 1992-05-07 | 1994-09-13 | Tdk Corporation | Variable inductance coil device |
US5345209A (en) * | 1992-07-30 | 1994-09-06 | Tdk Corporation | Adjustment system for a coil device |
US5382937A (en) * | 1992-07-30 | 1995-01-17 | Tdk Corporation | Coil device |
US5572788A (en) * | 1992-07-30 | 1996-11-12 | Tdk Corporation | Coil device |
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