JPH0243187B2 - - Google Patents
Info
- Publication number
- JPH0243187B2 JPH0243187B2 JP56010055A JP1005581A JPH0243187B2 JP H0243187 B2 JPH0243187 B2 JP H0243187B2 JP 56010055 A JP56010055 A JP 56010055A JP 1005581 A JP1005581 A JP 1005581A JP H0243187 B2 JPH0243187 B2 JP H0243187B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- transistor
- resistor
- output
- circuit
- 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.)
- Expired - Lifetime
Links
- 108091008695 photoreceptors Proteins 0.000 claims description 10
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 16
- 230000003287 optical effect Effects 0.000 description 11
- 238000007493 shaping process Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Exposure In Printing And Copying (AREA)
- Control Or Security For Electrophotography (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56010055A JPS57124374A (en) | 1981-01-26 | 1981-01-26 | Exposure controller for copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56010055A JPS57124374A (en) | 1981-01-26 | 1981-01-26 | Exposure controller for copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57124374A JPS57124374A (en) | 1982-08-03 |
| JPH0243187B2 true JPH0243187B2 (de) | 1990-09-27 |
Family
ID=11739698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56010055A Granted JPS57124374A (en) | 1981-01-26 | 1981-01-26 | Exposure controller for copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57124374A (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59198472A (ja) * | 1983-04-26 | 1984-11-10 | Canon Inc | 複写装置 |
| JPS6157960A (ja) * | 1984-08-29 | 1986-03-25 | Minolta Camera Co Ltd | 複写機の測光装置 |
| JPH0820680B2 (ja) * | 1986-03-04 | 1996-03-04 | ミノルタ株式会社 | 複写機の露光量制御方法 |
| JPS6321939U (de) * | 1986-07-29 | 1988-02-13 |
-
1981
- 1981-01-26 JP JP56010055A patent/JPS57124374A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57124374A (en) | 1982-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4354758A (en) | Exposure control device for a photocopier | |
| US4124294A (en) | Light emission regulation device | |
| US3679306A (en) | Feedback system for controlling image light energy in electrostatic photocopiers | |
| US4272183A (en) | Control system responsive to eraser malfunctions in electrophotographic copying machines | |
| JPH0243187B2 (de) | ||
| JPS6031132A (ja) | 自動露光装置 | |
| JPH0310101B2 (de) | ||
| JPS639207B2 (de) | ||
| JPS639209B2 (de) | ||
| US4465358A (en) | Image density detecting device for image forming apparatus | |
| US4027199A (en) | Flash lamp modulator system | |
| JPS6310810B2 (de) | ||
| US4090108A (en) | Interface system to control flash lamp | |
| JPS639208B2 (de) | ||
| JPH0448377B2 (de) | ||
| JPS59128532A (ja) | 露光制御装置 | |
| US5610480A (en) | Control apparatus for copying machine or the like | |
| JPS5919963A (ja) | 複写機の露光制御装置 | |
| US6339691B1 (en) | Image forming apparatus with a constant-current power supply | |
| US5349421A (en) | Electrophotographing apparatus | |
| US5982114A (en) | Control apparatus for copying machine or the like | |
| JPS6342260B2 (de) | ||
| EP0066187A1 (de) | Vorrichtung zur Feststellung der Bilddichte für ein Bilderzeugungsgerät | |
| JP2755617B2 (ja) | 露光制御装置 | |
| JPH028300B2 (de) |