JPH0431153U - - Google Patents
Info
- Publication number
- JPH0431153U JPH0431153U JP7221390U JP7221390U JPH0431153U JP H0431153 U JPH0431153 U JP H0431153U JP 7221390 U JP7221390 U JP 7221390U JP 7221390 U JP7221390 U JP 7221390U JP H0431153 U JPH0431153 U JP H0431153U
- Authority
- JP
- Japan
- Prior art keywords
- potential
- recording body
- applying
- heating element
- detection means
- 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 description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 230000020169 heat generation Effects 0.000 description 1
Landscapes
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Developing For Electrophotography (AREA)
Description
第１図は本考案に係る画像形成装置の一実施例
を示す構成図、第２図は電位検知手段の構成ブロ
ツク図、第３図は現像バイアスの信号波形を示す
図、第４図は発熱体の回路構成図、第５図は記録
体の基材への印加電位と出力電位との相関図、第
６図は従来の記録体回りの構成図、第７図は記録
体と電位検知手段との距離ｄを示す構成図、第８
図は各装置間における記録体の電位と電位検知手
段による出力電位とのばら付きを示す相関図であ
る。
１……感光体ドラム（記録体）、９……電位セ
ンサ（電位検知手段）、３１……ヒータ（発熱体
）、３５……電源（印加手段）、３９……ＣＰＵ
３９（制御手段）。
FIG. 1 is a block diagram showing an embodiment of the image forming apparatus according to the present invention, FIG. 2 is a block diagram of the potential detection means, FIG. 3 is a diagram showing the signal waveform of the developing bias, and FIG. 4 is a diagram showing heat generation. Figure 5 is a diagram of the correlation between the potential applied to the base material of the recording body and the output potential, Figure 6 is a diagram of the configuration around the conventional recording body, and Figure 7 is the recording body and potential detection means. 8th block diagram showing the distance d from
The figure is a correlation diagram showing variations in the potential of the recording medium and the output potential of the potential detection means between the respective devices. 1... Photosensitive drum (recording body), 9... Potential sensor (potential detection means), 31... Heater (heating element), 35... Power supply (applying means), 39... CPU
39 (control means).
Claims (1)
れる記録体と、こと記録体の基材に所定電位を印
加する印加手段と、この印加手段による前記記録
体の表面電位を検知する電位検知手段と、前記記
録体内部に配設され該記録体の温度を所定温度に
上昇する発熱体とを備えた画像形成装置であつて
、 前記印加手段、電位検知手段及び発熱体に接続
された制御手段とを備え、該制御手段は、前記印
加手段による印加された所定電位と電位検知手段
の出力とから記録体と電位検知手段との距離のば
ら付きによる装置ごとの出力誤差を較正するとと
もに、前記電位検知手段により記録体の表面電位
を検知するときは発熱体の通電をオフとすること
を特徴とする画像形成装置。[Claims for Utility Model Registration] A recording body on which an original image is supported using an electrophotographic process, an applying means for applying a predetermined potential to a base material of the recording body, and a surface of the recording body by this applying means. An image forming apparatus comprising: a potential detecting means for detecting a potential; and a heating element disposed inside the recording body and raising the temperature of the recording body to a predetermined temperature, the applying means, the potential detecting means, and the heating element and a control means connected to the body, the control means controlling the output of each device due to variations in the distance between the recording body and the potential detection means based on the predetermined potential applied by the application means and the output of the potential detection means. An image forming apparatus characterized in that the error is calibrated and the heating element is turned off when the surface potential of the recording medium is detected by the potential detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990072213U JP2561857Y2 (en) | 1990-07-06 | 1990-07-06 | Image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990072213U JP2561857Y2 (en) | 1990-07-06 | 1990-07-06 | Image forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0431153U true JPH0431153U (en) | 1992-03-12 |
| JP2561857Y2 JP2561857Y2 (en) | 1998-02-04 |
Family
ID=31609955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990072213U Expired - Lifetime JP2561857Y2 (en) | 1990-07-06 | 1990-07-06 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2561857Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56104343A (en) * | 1980-01-24 | 1981-08-20 | Canon Inc | Electrophotographic device |
| JPH01289974A (en) * | 1988-05-17 | 1989-11-21 | Mita Ind Co Ltd | Grounding defect detecting device for photosensitive body |
-
1990
- 1990-07-06 JP JP1990072213U patent/JP2561857Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56104343A (en) * | 1980-01-24 | 1981-08-20 | Canon Inc | Electrophotographic device |
| JPH01289974A (en) * | 1988-05-17 | 1989-11-21 | Mita Ind Co Ltd | Grounding defect detecting device for photosensitive body |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2561857Y2 (en) | 1998-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |