JPS61119156U - - Google Patents
Info
- Publication number
- JPS61119156U JPS61119156U JP140985U JP140985U JPS61119156U JP S61119156 U JPS61119156 U JP S61119156U JP 140985 U JP140985 U JP 140985U JP 140985 U JP140985 U JP 140985U JP S61119156 U JPS61119156 U JP S61119156U
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- light
- document
- amount
- exposure
- 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
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Of Exposure In Printing And Copying (AREA)
Description
第１図は本考案の実施例をあらわす概略構成図
、第２図は同じく本考案の実施例をあらわすブロ
ツク図、第３図は本考案の実施例による光量制御
をあらわすフローチヤート図である。
１：ハロゲンランプ（露光ランプ）、２：リフ
レクター、３：原稿台、４〜７：ミラー、９：感
光ドラム、１０：ランプ露光量センサー（光量検
出手段）、１１：画像濃度センサー（光量検出手
段）、１５：ＣＰＵ、１８：交流電源、１９：基
準オリジナル。
FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention, FIG. 2 is a block diagram also showing an embodiment of the present invention, and FIG. 3 is a flowchart showing light amount control according to the embodiment of the present invention. 1: Halogen lamp (exposure lamp), 2: Reflector, 3: Document table, 4 to 7: Mirror, 9: Photosensitive drum, 10: Lamp exposure sensor (light amount detection means), 11: Image density sensor (light amount detection means) ), 15: CPU, 18: AC power supply, 19: Standard original.
Claims (1)
稿に反射して感光ドラムに導かれる光量を検出す
る手段とを設け、原稿に照射する光線を遮らない
位置に基準オリジナルを設け、露光ランプからの
光線を基準オリジナルに照射しその反射光を一定
値になるようにランプ光量を制御する手段を設け
、該基準オリジナルランプ光量が安定した時点で
ランプ光量またはランプ電圧を検出しその検出値
を目標値として原稿走査の際のランプ光量をフイ
ードバツク制御する手段を設けたことを特徴とす
る複写機の露光制御装置。 A means for detecting the amount of light emitted by the exposure lamp and a means for detecting the amount of light reflected by the document and guided to the photosensitive drum are provided, a reference original is provided at a position that does not block the light rays irradiating the document, and the light rays from the exposure lamp are A means is provided to control the lamp light intensity so that the reference original is irradiated with the reflected light to a constant value, and when the reference original lamp light intensity becomes stable, the lamp light intensity or lamp voltage is detected and the detected value is used as the target value. 1. An exposure control device for a copying machine, comprising means for feedback controlling the amount of lamp light during scanning of a document.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP140985U JPS61119156U (en) | 1985-01-11 | 1985-01-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP140985U JPS61119156U (en) | 1985-01-11 | 1985-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61119156U true JPS61119156U (en) | 1986-07-28 |
Family
ID=30474130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP140985U Pending JPS61119156U (en) | 1985-01-11 | 1985-01-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61119156U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59210433A (en) * | 1983-05-14 | 1984-11-29 | Sharp Corp | Copying machine |
| JPS60184240A (en) * | 1984-03-02 | 1985-09-19 | Canon Inc | Image forming device |
-
1985
- 1985-01-11 JP JP140985U patent/JPS61119156U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59210433A (en) * | 1983-05-14 | 1984-11-29 | Sharp Corp | Copying machine |
| JPS60184240A (en) * | 1984-03-02 | 1985-09-19 | Canon Inc | Image forming device |
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