JPS6192955U - - Google Patents
Info
- Publication number
- JPS6192955U JPS6192955U JP17738684U JP17738684U JPS6192955U JP S6192955 U JPS6192955 U JP S6192955U JP 17738684 U JP17738684 U JP 17738684U JP 17738684 U JP17738684 U JP 17738684U JP S6192955 U JPS6192955 U JP S6192955U
- Authority
- JP
- Japan
- Prior art keywords
- color
- value
- copying machine
- amount
- charger
- 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
- 238000000926 separation method Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003086 colorant Substances 0.000 claims 1
- 108091008695 photoreceptors Proteins 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は本考案が適用されるカラー電子複写機の
一例を示す正面図、第３図は本考案に係る表面電
位検出用濃度パターン図、第４Ａ図及び第４Ｂ図
は本考案の処理を示すフローチヤート。
符号の説明、３…ランプ、７…色分解フイルタ
、９…感光体ドラム、１０…帯電器、１１Ａ〜１
１Ｄ…現像機、１２Ａ〜１２Ｄ…表面電位計、１
３…転写ドラム、１６…転写用帯電器、１７…定
着器、２０…検出回路、２１…基準電圧発生回路
、２２…比較回路、２３…演算制御回路、２４…
記憶回路、２５…帯電用電源。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a front view showing an example of a color electronic copying machine to which the present invention is applied, FIG. 3 is a density pattern diagram for surface potential detection according to the present invention, and FIGS. 4A and 4B show the processing of the present invention. Flowchart showing. Explanation of symbols, 3... Lamp, 7... Color separation filter, 9... Photosensitive drum, 10... Charger, 11A-1
1D...Developing machine, 12A-12D...Surface electrometer, 1
3... Transfer drum, 16... Transfer charger, 17... Fixing device, 20... Detection circuit, 21... Reference voltage generation circuit, 22... Comparison circuit, 23... Arithmetic control circuit, 24...
Memory circuit, 25...Charging power supply.
Claims (1)
感光体表面に静電潜像を順次形成し、該潜像を前
記複数の現像機によつて現像するカラー複写機の
各色分解画像形成工程における暗現像電位を検出
し、該検出値に基づいて次の色分解画像形成工程
における帯電量を制御するカラー複写機用帯電制
御装置において、 前記感光体表面に形成された濃度パターン潜像
の暗電位と予め設定した基準値とを比較し、その
偏差量を出力する比較部と、 該比較部による偏差量が許容値を越えるときに
、該偏差量が前記許容値内に収まるように帯電器
の電源電圧を補正する補正手段と、 今回の複写時の補正演算値に基づいて次回複写
における比較偏差量を今回と同一のレベルに保持
するための帯電器の電源電圧補正値を算出する演
算手段を設けたことを特徴とするカラー複写機用
帯電制御装置。[Claims for Utility Model Registration] A color system that is equipped with a plurality of developing machines for different developing colors, sequentially forms electrostatic latent images on the surface of a photoreceptor for each color, and develops the latent images by the plurality of developing machines. In a charge control device for a color copying machine that detects a dark development potential in each color separation image forming step of the copying machine and controls the amount of charge in the next color separation image formation step based on the detected value, a comparison section that compares the dark potential of the density pattern latent image and a preset reference value and outputs the amount of deviation; A correction means for correcting the power supply voltage of the charger so that it falls within the value, and a power supply for the charger for maintaining the comparison deviation amount in the next copy at the same level as the current copy based on the correction calculation value for the current copy. A charge control device for a color copying machine, characterized in that a calculation means for calculating a voltage correction value is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17738684U JPS6192955U (en) | 1984-11-22 | 1984-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17738684U JPS6192955U (en) | 1984-11-22 | 1984-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6192955U true JPS6192955U (en) | 1986-06-16 |
Family
ID=30734955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17738684U Pending JPS6192955U (en) | 1984-11-22 | 1984-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6192955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6488568A (en) * | 1987-09-30 | 1989-04-03 | Fuji Xerox Co Ltd | Color electrophotographic device |
| JPH05281836A (en) * | 1991-09-05 | 1993-10-29 | Xerox Corp | Loss control for electrified region image in three-level-image forming device |
-
1984
- 1984-11-22 JP JP17738684U patent/JPS6192955U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6488568A (en) * | 1987-09-30 | 1989-04-03 | Fuji Xerox Co Ltd | Color electrophotographic device |
| JPH05281836A (en) * | 1991-09-05 | 1993-10-29 | Xerox Corp | Loss control for electrified region image in three-level-image forming device |
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