JPH0331729U - - Google Patents
Info
- Publication number
- JPH0331729U JPH0331729U JP9236589U JP9236589U JPH0331729U JP H0331729 U JPH0331729 U JP H0331729U JP 9236589 U JP9236589 U JP 9236589U JP 9236589 U JP9236589 U JP 9236589U JP H0331729 U JPH0331729 U JP H0331729U
- Authority
- JP
- Japan
- Prior art keywords
- contact glass
- light shielding
- document
- light
- detecting
- 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 4
- 239000011521 glass Substances 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 1
Landscapes
- Holders For Sensitive Materials And Originals (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図は本考案に係る遮光装置を適用した複写
機の概略構成図、第２図は第１図のＡ−Ａ線にお
ける断面図、第３図は原稿検知手段の構成例を示
す図、第４図は制御部のブロツク図、第５図は本
考案の遮光装置の制御動作の一例を示すフローチ
ヤート、第６図ａ，ｂは任意の形状、任意の配置
の原稿領域以外の領域を遮光する場合を説明する
ための図、第７図は従来の遮光装置の構成図であ
る。
１……複写機、２……原稿押工、３……コンタ
クトガラス、４……照明読取ユニツト、５……ブ
ツクモードスイツチ、７……遮光手段、１０……
原稿検知手段、１５……操作ユニツト、２０……
プロセツサ。
FIG. 1 is a schematic configuration diagram of a copying machine to which a light shielding device according to the present invention is applied, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG. 3 is a diagram showing an example of the configuration of a document detection means. FIG. 4 is a block diagram of the control unit, FIG. 5 is a flowchart showing an example of the control operation of the light shielding device of the present invention, and FIGS. FIG. 7, which is a diagram for explaining the case of light shielding, is a configuration diagram of a conventional light shielding device. DESCRIPTION OF SYMBOLS 1... Copying machine, 2... Document presser, 3... Contact glass, 4... Illumination reading unit, 5... Book mode switch, 7... Light shielding means, 10...
Original detection means, 15... Operating unit, 20...
processor.
Claims (1)
トガラスの各位置で光透過率が可変となるように
構成されている透光手段と、コンタクトガラス上
に置かれた原稿の領域を検知する原稿検知手段と
、該原稿検知手段からの検知情報に基づいて前記
遮透光手段の各位置での光透過率を制御する制御
手段とを備えていることを特徴とする遮光装置。 a light transmitting means provided on the lower surface of the contact glass and configured to have variable light transmittance at each position of the contact glass; a document detection means detecting an area of the document placed on the contact glass; A light shielding device comprising: a control means for controlling light transmittance at each position of the light shielding and transmitting means based on detection information from the document detecting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9236589U JPH0331729U (en) | 1989-08-05 | 1989-08-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9236589U JPH0331729U (en) | 1989-08-05 | 1989-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0331729U true JPH0331729U (en) | 1991-03-27 |
Family
ID=31641800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9236589U Pending JPH0331729U (en) | 1989-08-05 | 1989-08-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0331729U (en) |
-
1989
- 1989-08-05 JP JP9236589U patent/JPH0331729U/ja active Pending
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