JPS5816650U - Copier exposure power supply - Google Patents
Copier exposure power supplyInfo
- Publication number
- JPS5816650U JPS5816650U JP10935781U JP10935781U JPS5816650U JP S5816650 U JPS5816650 U JP S5816650U JP 10935781 U JP10935781 U JP 10935781U JP 10935781 U JP10935781 U JP 10935781U JP S5816650 U JPS5816650 U JP S5816650U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- light source
- exposure power
- circuit
- reference voltage
- 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
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Of Exposure In Printing And Copying (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図イないし二は従来の回路の説明図、第２図はこの
考案の一実施例を示す回路である。1 to 2 are explanatory diagrams of conventional circuits, and FIG. 2 is a circuit showing an embodiment of this invention.
Claims (1)
記光源１の予熱電流及び点灯電流の基準値を設定する手
段ＶＲ２，ＶＲ，及び予熱信号とともに上記光源１と並
列接続した接点ＲＬ□１１をオフするリレＲＬ□を有す
る基準電圧設定回路４と、光源１を流れる電流を検出す
る手段と、該検出手段が検出した検出信号と上記基準電
圧設定回路４で設定された値を比較し、その差で上記定
電流駆動回路２を制御するＰＷＭ制御回路３とを具備し
てなる複写機の露光用電源装着。′A constant current drive circuit 2 that supplies power to the light source 1 for exposure, means VR2, VR for setting reference values for the preheating current and lighting current of the light source 1, and a contact RL□ connected in parallel with the light source 1 together with the preheating signal. a reference voltage setting circuit 4 having a relay RL□ for turning off the reference voltage setting circuit 4; , and a PWM control circuit 3 that controls the constant current drive circuit 2 based on the difference between them. ′
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10935781U JPS5816650U (en) | 1981-07-24 | 1981-07-24 | Copier exposure power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10935781U JPS5816650U (en) | 1981-07-24 | 1981-07-24 | Copier exposure power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5816650U true JPS5816650U (en) | 1983-02-01 |
Family
ID=29903739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10935781U Pending JPS5816650U (en) | 1981-07-24 | 1981-07-24 | Copier exposure power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0186806U (en) * | 1987-11-30 | 1989-06-08 |
-
1981
- 1981-07-24 JP JP10935781U patent/JPS5816650U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0186806U (en) * | 1987-11-30 | 1989-06-08 |
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