JPH0442662U - - Google Patents
Info
- Publication number
- JPH0442662U JPH0442662U JP8381690U JP8381690U JPH0442662U JP H0442662 U JPH0442662 U JP H0442662U JP 8381690 U JP8381690 U JP 8381690U JP 8381690 U JP8381690 U JP 8381690U JP H0442662 U JPH0442662 U JP H0442662U
- Authority
- JP
- Japan
- Prior art keywords
- discharge device
- corona discharge
- detection signal
- charging current
- value
- 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 3
- 108091008695 photoreceptors Proteins 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
- 101100195396 Human cytomegalovirus (strain Merlin) RL11 gene Proteins 0.000 description 1
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Description
第１図はこの考案のコロナ放電装置を使用する
電子写真装置の概略構造を示す図、第２図はコロ
ナ放電器の説明図、第３図はこの考案によるコロ
ナ放電装置の１実施例を示す回路図、第４図は検
出信号のパルス幅変調を説明するための波形図、
第５図はコロナ放電電流とデユーテイとの関係を
示す線図、第６図、第７図は第３図のコロナ放電
装置で使用する高圧電源の実施例を示す回路図、
第８図は制御部の動作を説明するためのフローチ
ヤートである。
ＲＳ２，ＳＷ１，ＲＬ１１，ＳＷ２，ＲＬ２２
，ＳＷ３……分解能切替手段。
Fig. 1 is a diagram showing a schematic structure of an electrophotographic apparatus using the corona discharge device of this invention, Fig. 2 is an explanatory diagram of the corona discharge device, and Fig. 3 shows an embodiment of the corona discharge device of this invention. A circuit diagram, FIG. 4 is a waveform diagram for explaining pulse width modulation of the detection signal,
FIG. 5 is a diagram showing the relationship between corona discharge current and duty; FIGS. 6 and 7 are circuit diagrams showing an example of the high-voltage power supply used in the corona discharge device of FIG. 3;
FIG. 8 is a flowchart for explaining the operation of the control section. RS2, SW1, RL11, SW2, RL22
, SW3...Resolution switching means.
Claims (1)
なるようにコロナ放電器に供給する高電圧を調整
し、調整値を記憶するようにしたコロナ放電装置
であつて、感光体帯電電流の設定値に応じて、検
出信号の分解能を変える切替手段を設けたことを
特徴とするコロナ放電装置。 A corona discharge device that detects a photoreceptor charging current, adjusts a high voltage supplied to a corona discharger so that the detection signal becomes a predetermined value, and stores the adjusted value, the setting of the photoreceptor charging current. A corona discharge device characterized by being provided with a switching means for changing the resolution of a detection signal according to a value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8381690U JPH0442662U (en) | 1990-08-07 | 1990-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8381690U JPH0442662U (en) | 1990-08-07 | 1990-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0442662U true JPH0442662U (en) | 1992-04-10 |
Family
ID=31631806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8381690U Pending JPH0442662U (en) | 1990-08-07 | 1990-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442662U (en) |
-
1990
- 1990-08-07 JP JP8381690U patent/JPH0442662U/ja active Pending
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