JPS6438636U - - Google Patents
Info
- Publication number
- JPS6438636U JPS6438636U JP13322587U JP13322587U JPS6438636U JP S6438636 U JPS6438636 U JP S6438636U JP 13322587 U JP13322587 U JP 13322587U JP 13322587 U JP13322587 U JP 13322587U JP S6438636 U JPS6438636 U JP S6438636U
- Authority
- JP
- Japan
- Prior art keywords
- original
- fluorescent member
- document
- light
- platen glass
- 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 3
- 238000001514 detection method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Description
第１図はこの考案に係る原稿サイズ検出装置の
一実施例の要部を示す概略図、第２図はプラテン
カバーに塗布された蛍光塗料の位置を示す平面図
、第３図はこの考案を適用し得る電子写真複写機
を示す構成図、第４図は原稿の走査露光光学系を
示す斜視図、第５図はこの考案の他の実施例を示
す一部破断の正面図、第６図は制御系を示すブロ
ツク図、第７図は従来の装置を示す構成図である
。
符号の説明、１……原稿、３……プラテンカバ
ー、４……プラテンガラス、２８……蛍光塗料、
２９……発光素子、３０……受光素子。
FIG. 1 is a schematic diagram showing the main parts of an embodiment of the original size detection device according to this invention, FIG. FIG. 4 is a perspective view showing a document scanning exposure optical system; FIG. 5 is a partially cutaway front view showing another embodiment of this invention; FIG. 6 7 is a block diagram showing a control system, and FIG. 7 is a configuration diagram showing a conventional device. Explanation of symbols, 1... Original, 3... Platen cover, 4... Platen glass, 28... Fluorescent paint,
29... Light emitting element, 30... Light receiving element.
Claims (1)
押えカバーの原稿側に、赤外線を受光すると発光
する蛍光部材を原稿のサイズに対応した位置に設
けるとともに、原稿載置台ガラスの下側に上記蛍
光部材を赤外線によつて照明する発光素子と、蛍
光部材からの光を受光する受光素子とを設けたこ
とを特徴とする原稿サイズ検出装置。 A fluorescent member that emits light when receiving infrared rays is provided on the original side of the document holding cover that presses and fixes the original onto the original platen glass at a position corresponding to the size of the original, and the fluorescent member is placed below the original platen glass. What is claimed is: 1. A document size detecting device comprising: a light emitting element that illuminates a document with infrared rays; and a light receiving element that receives light from a fluorescent member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13322587U JPS6438636U (en) | 1987-09-02 | 1987-09-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13322587U JPS6438636U (en) | 1987-09-02 | 1987-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6438636U true JPS6438636U (en) | 1989-03-08 |
Family
ID=31390892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13322587U Pending JPS6438636U (en) | 1987-09-02 | 1987-09-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6438636U (en) |
-
1987
- 1987-09-02 JP JP13322587U patent/JPS6438636U/ja active Pending