JPH0159236U - - Google Patents
Info
- Publication number
- JPH0159236U JPH0159236U JP15328087U JP15328087U JPH0159236U JP H0159236 U JPH0159236 U JP H0159236U JP 15328087 U JP15328087 U JP 15328087U JP 15328087 U JP15328087 U JP 15328087U JP H0159236 U JPH0159236 U JP H0159236U
- Authority
- JP
- Japan
- Prior art keywords
- light
- exposure window
- hole
- copying machine
- shielding
- 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
- 239000011521 glass Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Holders For Sensitive Materials And Originals (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図から第５図は本考案の実施例を示す図面
で、第１図は遮光装置の構成を示す斜視図、第２
図は遮光シートの平面図、第３図は光センサーの
概略を示す図式図、第４図は制御ブロツク図、第
５図は制御フローチヤート図であり、第６図ａ，
ｂは従来提供されている遮光装置の図でａは図式
図、ｂは遮光方法の説明図である。
１……コンタクトガラス、２……遮光シート（
遮光手段）、３……回転ロール、４……モータ（
駆動手段）、９……プーリ（駆動手段）、１０…
…ベルト（駆動手段）、１１ａ……露光窓先端位
置決め用ホール（制御手段）、１１ｂ，１１ｃ…
…露光窓サイズ検知用ホール（制御手段）、１２
……光センサー（制御手段）、２１……複写機操
作部（制御手段）、２２……ＣＰＵ（制御手段）
、２３……ＲＯＭ，ＲＡＭ（制御手段）。
1 to 5 are drawings showing an embodiment of the present invention, in which FIG. 1 is a perspective view showing the structure of a light shielding device, and FIG.
3 is a schematic diagram showing the outline of the optical sensor, FIG. 4 is a control block diagram, FIG. 5 is a control flowchart, and FIG.
b is a diagram of a conventionally provided light shielding device, a is a schematic diagram, and b is an explanatory diagram of a light shielding method. 1... Contact glass, 2... Light shielding sheet (
light shielding means), 3... rotating roll, 4... motor (
driving means), 9... pulley (driving means), 10...
...Belt (driving means), 11a...Exposure window tip positioning hole (control means), 11b, 11c...
...Exposure window size detection hole (control means), 12
... Optical sensor (control means), 21 ... Copying machine operation section (control means), 22 ... CPU (control means)
, 23...ROM, RAM (control means).
Claims (1)
光手段を有する複写機の遮光装置において、該遮
光手段の両端側を巻装する回転ロールと、該回転
ロールの駆動手段と、コンタクトガラスにおける
遮光領域を変更させる手段とを有することを特徴
とする複写機の遮光装置。 (2) 前記遮光手段が使用する原稿サイズの種類
に対応する複数の露光窓を有し、前記遮光領域を
変更させる手段が、前記複数の露光窓の中から、
複写倍率と紙サイズとから定まる原稿サイズに対
応した露光窓を選択させる制御手段であることを
特徴とする、実用新案登録請求の範囲第１項に記
載の複写機の遮光装置。 (3) 前記露光窓が、該露光窓の近傍に、該露光
窓の位置決め用ホールと該露光窓サイズ検知用ホ
ールとを有し、前記制御手段が、前記位置決め用
ホールと前記露光窓サイズ検知用ホールを検知す
る複写機本体に取付けられたセンサーを有するこ
とを特徴とする、実用新案登録請求の範囲第２項
に記載の複写機の遮光装置。[Claims for Utility Model Registration] (1) In a light-shielding device for a copying machine having a sheet-like light-shielding means on the lower surface of a contact glass, a rotary roll around which both ends of the light-shielding means are wound, and a drive for the rotary roll. 1. A light-shielding device for a copying machine, comprising: means for changing a light-shielding region of a contact glass. (2) The light shielding means has a plurality of exposure windows corresponding to the type of document size used, and the means for changing the light shielding area selects from among the plurality of exposure windows.
The light shielding device for a copying machine according to claim 1, which is a control means for selecting an exposure window corresponding to a document size determined from a copying magnification and a paper size. (3) The exposure window has a hole for positioning the exposure window and a hole for detecting the size of the exposure window near the exposure window, and the control means has a hole for positioning the exposure window and a hole for detecting the size of the exposure window. The light shielding device for a copying machine according to claim 2, which is characterized by having a sensor attached to the main body of the copying machine for detecting the use hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15328087U JPH0159236U (en) | 1987-10-08 | 1987-10-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15328087U JPH0159236U (en) | 1987-10-08 | 1987-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0159236U true JPH0159236U (en) | 1989-04-13 |
Family
ID=31428977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15328087U Pending JPH0159236U (en) | 1987-10-08 | 1987-10-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0159236U (en) |
-
1987
- 1987-10-08 JP JP15328087U patent/JPH0159236U/ja active Pending
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