JPS6235359U - - Google Patents
Info
- Publication number
- JPS6235359U JPS6235359U JP12646085U JP12646085U JPS6235359U JP S6235359 U JPS6235359 U JP S6235359U JP 12646085 U JP12646085 U JP 12646085U JP 12646085 U JP12646085 U JP 12646085U JP S6235359 U JPS6235359 U JP S6235359U
- Authority
- JP
- Japan
- Prior art keywords
- surface potential
- photoreceptor
- detection means
- grid electrode
- 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.)
- Pending
Links
- 108091008695 photoreceptors Proteins 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 6
- 238000010586 diagram Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Description
第１図は本考案のクレーム対応図、第２図は本
考案に係る複写機の実施例の内部概略図、第３図
は本実施例のスロコトロンの説明図、第４図は未
使用感光体におけるワイヤー電圧ＶＷ、ブリツド
電圧ＶＧおよび感光体表面電位ＶＥの関係を示す
図、第５図は疲労した感光体におけるワイヤー電
圧ＶＷ、グリツド電位ＶＧおよび感光体表面電位
ＶＥの関係を示す図、第６図はワイヤー電圧ＶＷ
、グリツド電圧ＶＧおよびスコロトロン総電流Ｉ
ｆの関係を示す図、第７図は本実施例の制御系の
ブロツク図、第８図は同制御系による動作手順を
示すフローチヤートである。
１……ベルト状感光体、２……プーリ、３……
スコロトロン、４……露光域、５……結像レンズ
、６……プラテンガラス、７……露光ランプ、８
……反射板、９……表面電位計、１０……除電光
源、１１……現像器、１２……転写コロトロン、
１３……クリーニング器、２０……コロナワイヤ
ー、２１……グリツド、２２……シールド、２３
……コロナワイヤー電源、２４……グリツド電源
、２５……ワイヤー電圧可変リモート入力、２６
……グリツド電圧可変リモート入力、２７……コ
ントローラ、２８，２９……Ａ／Ｄコンバータ、
３０，３１……Ｄ／Ａコンバータ、３２……電流
計、３３……ＣＰＵ、３４……ＲＯＭ、３５……
ＲＡＭ。
Fig. 1 is a diagram corresponding to the claims of the present invention, Fig. 2 is an internal schematic diagram of an embodiment of a copying machine according to the present invention, Fig. 3 is an explanatory diagram of the slocotron of this embodiment, and Fig. 4 is an unused photoreceptor. FIG. 5 is a diagram showing the relationship among the wire voltage VW, grid voltage VG, and photoconductor surface potential VE in a fatigued photoconductor; FIG. The diagram shows the wire voltage VW
, grid voltage VG and total scorotron current I
FIG. 7 is a block diagram of the control system of this embodiment, and FIG. 8 is a flowchart showing the operation procedure of the control system. 1... Belt-shaped photoreceptor, 2... Pulley, 3...
Scorotron, 4... Exposure range, 5... Imaging lens, 6... Platen glass, 7... Exposure lamp, 8
... Reflection plate, 9 ... Surface electrometer, 10 ... Static elimination light source, 11 ... Developer, 12 ... Transfer corotron,
13...Cleaning device, 20...Corona wire, 21...Grid, 22...Shield, 23
... Corona wire power supply, 24 ... Grid power supply, 25 ... Wire voltage variable remote input, 26
... Grid voltage variable remote input, 27 ... Controller, 28, 29 ... A/D converter,
30, 31...D/A converter, 32...Ammeter, 33...CPU, 34...ROM, 35...
RAM.
Claims (1)
在させたスコロトロンを有する静電式複写機にお
いて、感光体の表面電位を検出する表面電位検知
手段と、スコロトロンのワイヤー電流を検出する
電流検出手段と、前記表面電位検知手段および前
記電流検出手段による検知情報をもとに前記コロ
ナワイヤーおよび格子状電極に印加する電圧を計
算する印加電圧算出手段と、同印加電圧算出手段
による計算結果に基づきコロナワイヤーおよび格
子状電極に電圧を印加する印加電圧制御手段とを
備え、前記表面電位検知手段により検知された感
光体表面電位にもとづくフイードバツク制御によ
り、感光体の表面電位を所望の電位とすることを
特徴とする静電式複写機の電位制御装置。 In an electrostatic copying machine having a scorotron in which a grid electrode is interposed between a corona wire and a photoreceptor, a surface potential detection means for detecting the surface potential of the photoreceptor, a current detection means for detecting a wire current of the scorotron, and , an applied voltage calculation means for calculating the voltage to be applied to the corona wire and the grid electrode based on the detection information by the surface potential detection means and the current detection means, and a corona wire based on the calculation result by the applied voltage calculation means. and an applied voltage control means for applying a voltage to the grid electrode, and the surface potential of the photoreceptor is set to a desired potential by feedback control based on the photoreceptor surface potential detected by the surface potential detection means. Potential control device for electrostatic copying machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12646085U JPS6235359U (en) | 1985-08-21 | 1985-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12646085U JPS6235359U (en) | 1985-08-21 | 1985-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6235359U true JPS6235359U (en) | 1987-03-02 |
Family
ID=31020279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12646085U Pending JPS6235359U (en) | 1985-08-21 | 1985-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6235359U (en) |
-
1985
- 1985-08-21 JP JP12646085U patent/JPS6235359U/ja active Pending
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