JPS63144645U - - Google Patents
Info
- Publication number
- JPS63144645U JPS63144645U JP3710887U JP3710887U JPS63144645U JP S63144645 U JPS63144645 U JP S63144645U JP 3710887 U JP3710887 U JP 3710887U JP 3710887 U JP3710887 U JP 3710887U JP S63144645 U JPS63144645 U JP S63144645U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- developing bias
- dividing circuit
- bias voltage
- outputs
- 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
- 108091008695 photoreceptors Proteins 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Developing For Electrophotography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Description
第1図は本考案の一実施例を示す説明図。第2
図は第1図の実施例の具体例を示す説明図。第3
図は従来の現像バイアス電圧発生装置を示す説明
図。
符号の説明、1……直流電圧発生回路、2……
交流電源、3……帯電器、3a……放電電極、3
b……スクリーン・グリツド電極、4……現像機
、5……分圧回路。
FIG. 1 is an explanatory diagram showing an embodiment of the present invention. Second
The figure is an explanatory diagram showing a specific example of the embodiment of FIG. 1. Third
The figure is an explanatory diagram showing a conventional developing bias voltage generator. Explanation of symbols, 1...DC voltage generation circuit, 2...
AC power supply, 3... Charger, 3a... Discharge electrode, 3
b...Screen/grid electrode, 4...Developer, 5...Voltage dividing circuit.
Claims (1)
する現像バイアス電圧発生装置において、 感光体を帯電する帯電器のスクリーン・グリツ
ド電極の直流電圧を分圧する分圧回路を有し、前
記分圧回路の分圧値を現像バイアス電圧として出
力することを特徴とする現像バイアス電圧発生装
置。 (2) 前記分圧回路は定電圧発生用バリスタ、可
変抵抗、および固定抵抗によつて構成され、前記
可変抵抗の調整によつて前記分圧値を出力する実
用新案登録請求の範囲第1項記載の現像バイアス
電圧発生装置。[Claims for Utility Model Registration] (1) In a developing bias voltage generator that outputs a predetermined DC voltage to a developing bias means, a voltage dividing circuit that divides the DC voltage of a screen/grid electrode of a charger that charges a photoreceptor. A developing bias voltage generating device comprising: a developing bias voltage generating device, which outputs a divided voltage value of the voltage dividing circuit as a developing bias voltage. (2) The voltage dividing circuit is constituted by a constant voltage generating varistor, a variable resistor, and a fixed resistor, and the divided voltage value is output by adjusting the variable resistor.Claim 1 of the Utility Model Registration Claims The developing bias voltage generator described above.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987037108U JPH0725801Y2 (en) | 1987-03-13 | 1987-03-13 | Development bias voltage generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987037108U JPH0725801Y2 (en) | 1987-03-13 | 1987-03-13 | Development bias voltage generator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63144645U true JPS63144645U (en) | 1988-09-22 |
JPH0725801Y2 JPH0725801Y2 (en) | 1995-06-07 |
Family
ID=30848138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987037108U Expired - Lifetime JPH0725801Y2 (en) | 1987-03-13 | 1987-03-13 | Development bias voltage generator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0725801Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012118254A (en) * | 2010-11-30 | 2012-06-21 | Brother Ind Ltd | Image forming apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5246839U (en) * | 1975-09-30 | 1977-04-02 | ||
JPS6127147U (en) * | 1984-07-24 | 1986-02-18 | 沖電気工業株式会社 | electrophotographic equipment |
JPS61130952U (en) * | 1985-02-01 | 1986-08-15 |
-
1987
- 1987-03-13 JP JP1987037108U patent/JPH0725801Y2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5246839U (en) * | 1975-09-30 | 1977-04-02 | ||
JPS6127147U (en) * | 1984-07-24 | 1986-02-18 | 沖電気工業株式会社 | electrophotographic equipment |
JPS61130952U (en) * | 1985-02-01 | 1986-08-15 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012118254A (en) * | 2010-11-30 | 2012-06-21 | Brother Ind Ltd | Image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0725801Y2 (en) | 1995-06-07 |
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