JPH01128267U - - Google Patents
Info
- Publication number
- JPH01128267U JPH01128267U JP2262688U JP2262688U JPH01128267U JP H01128267 U JPH01128267 U JP H01128267U JP 2262688 U JP2262688 U JP 2262688U JP 2262688 U JP2262688 U JP 2262688U JP H01128267 U JPH01128267 U JP H01128267U
- Authority
- JP
- Japan
- Prior art keywords
- developing
- developing device
- current
- developing sleeve
- sleeve
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005856 abnormality Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案の一実施例の構成を示す説明図
である。
１ａ，１ｂ……現像スリーブ、２ａ，２ｂ……
現像バイアス電源、３ａ，３ｂ……定電圧回路、
４ａ，４ｂ……電流検知手段、５……操作板、６
……ＣＰＵ。
FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the present invention. 1a, 1b...Developing sleeve, 2a, 2b...
Development bias power supply, 3a, 3b...constant voltage circuit,
4a, 4b...Current detection means, 5...Operation board, 6
...CPU.
Claims (1)
置の現像スリーブに対して現像バイアス電源ライ
ンとは別系統にて接続した定電圧回路と、該定電
圧回路に流れる電流を検知する手段とを備えたこ
とを特徴とする現像装置。 (2) 前記電流検知手段によつて検知された前記
電流が一定値を越えた場合、現像装置の異常を表
示する手段を備えたことを特徴とする請求項第１
項記載の現像装置。 (3) 前記現像スリーブが複数設けられた場合に
、各現像スリーブに接続された各定電流素子の少
なくとも一方の電流が一定値を越えた場合に、正
常な方の現像スリーブに接続された現像バイアス
電源からの出力電圧を制御する手段を備えたこと
を特徴とする請求項第１項記載の現像装置。[Claims for Utility Model Registration] (1) In a developing device of an electrophotographic device, a constant voltage circuit connected to the developing sleeve of the developing device in a separate system from the developing bias power supply line, and a voltage flowing through the constant voltage circuit. A developing device comprising: means for detecting current. (2) Claim 1, further comprising means for displaying an abnormality in the developing device when the current detected by the current detection means exceeds a certain value.
Developing device as described in section. (3) When a plurality of developing sleeves are provided and the current of at least one of the constant current elements connected to each developing sleeve exceeds a certain value, the developing sleeve connected to the normal developing sleeve 2. The developing device according to claim 1, further comprising means for controlling the output voltage from the bias power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2262688U JPH01128267U (en) | 1988-02-23 | 1988-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2262688U JPH01128267U (en) | 1988-02-23 | 1988-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01128267U true JPH01128267U (en) | 1989-09-01 |
Family
ID=31240906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2262688U Pending JPH01128267U (en) | 1988-02-23 | 1988-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01128267U (en) |
-
1988
- 1988-02-23 JP JP2262688U patent/JPH01128267U/ja active Pending