JPS6434642U - - Google Patents
Info
- Publication number
- JPS6434642U JPS6434642U JP12952387U JP12952387U JPS6434642U JP S6434642 U JPS6434642 U JP S6434642U JP 12952387 U JP12952387 U JP 12952387U JP 12952387 U JP12952387 U JP 12952387U JP S6434642 U JPS6434642 U JP S6434642U
- Authority
- JP
- Japan
- Prior art keywords
- output
- power supply
- controlling
- voltage
- output 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
Landscapes
- Developing For Electrophotography (AREA)
- Color Electrophotography (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案の画像形成装置用電源装置の一
実施例を示す図、第２図は本考案の画像形成装置
用電源装置の他の実施例を示す図、第３図は画像
形成装置の一般的構成を示す図、第４図は従来の
電源装置の回路構成を示す図である。
７……誤差増幅器、８……発振器、９……パル
ス幅変調器（ＰＷＭ）、１０……コンバータトラ
ンス、１１……アナログリモート入力端子、Ｒ１
〜Ｒ８……抵抗、Ｑ１……トランジスタ、Ｄ１，
Ｄ２……ダイオード、ＣＲ１……バリスタ、Ｃ１
，Ｃ２……コンデンサ、１２……誤差増幅器、１
３……バリスタ、１４……基準電源回路、１５〜
１７……出力制御回路、Ｒ９〜Ｒ１７……抵抗、
Ｃ３……コンデンサ、Ｑ２……トランジスタ、１
８……バリスタ。
FIG. 1 is a diagram showing an embodiment of the power supply device for an image forming apparatus according to the present invention, FIG. 2 is a diagram showing another embodiment of the power supply device for an image forming apparatus according to the present invention, and FIG. FIG. 4 is a diagram showing the circuit structure of a conventional power supply device. 7... Error amplifier, 8... Oscillator, 9... Pulse width modulator (PWM), 10... Converter transformer, 11... Analog remote input terminal, R1
~R8...Resistor, Q1...Transistor, D1,
D2...Diode, CR1...Varistor, C1
, C2... Capacitor, 12... Error amplifier, 1
3...Varistor, 14...Reference power supply circuit, 15~
17...Output control circuit, R9-R17...Resistor,
C3... Capacitor, Q2... Transistor, 1
8...Barista.
Claims (1)
基準電源回路出力がそれぞれ入力され、各現像器
に対応した出力制御回路とからなり、各出力制御
回路は、出力電圧を検出する検出手段と、該検出
手段からの検出電圧と参照電圧が入力される比較
手段と、比較手段の出力に応じて引き込み電流を
制御し、出力電圧を制御する引き込み電流制御手
段とからなる画像形成装置用電源装置。 a reference power supply circuit having a converter transformer;
The reference power supply circuit output is inputted to each developing device, and each output control circuit includes a detection means for detecting an output voltage, and a detection voltage and a reference voltage from the detection means are inputted. 1. A power supply device for an image forming apparatus, comprising a comparison means for controlling the output voltage, and a draw-in current control means for controlling the draw-in current according to the output of the comparison means and controlling the output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987129523U JP2527723Y2 (en) | 1987-08-26 | 1987-08-26 | Power supply for image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987129523U JP2527723Y2 (en) | 1987-08-26 | 1987-08-26 | Power supply for image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6434642U true JPS6434642U (en) | 1989-03-02 |
| JP2527723Y2 JP2527723Y2 (en) | 1997-03-05 |
Family
ID=31383877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987129523U Expired - Lifetime JP2527723Y2 (en) | 1987-08-26 | 1987-08-26 | Power supply for image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2527723Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012252173A (en) * | 2011-06-03 | 2012-12-20 | Kyocera Document Solutions Inc | Image forming apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61166558A (en) * | 1985-01-18 | 1986-07-28 | Konishiroku Photo Ind Co Ltd | Image forming device |
-
1987
- 1987-08-26 JP JP1987129523U patent/JP2527723Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61166558A (en) * | 1985-01-18 | 1986-07-28 | Konishiroku Photo Ind Co Ltd | Image forming device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012252173A (en) * | 2011-06-03 | 2012-12-20 | Kyocera Document Solutions Inc | Image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2527723Y2 (en) | 1997-03-05 |