JPH0431136U - - Google Patents
Info
- Publication number
- JPH0431136U JPH0431136U JP7220790U JP7220790U JPH0431136U JP H0431136 U JPH0431136 U JP H0431136U JP 7220790 U JP7220790 U JP 7220790U JP 7220790 U JP7220790 U JP 7220790U JP H0431136 U JPH0431136 U JP H0431136U
- Authority
- JP
- Japan
- Prior art keywords
- document
- light
- emitting element
- optical sensor
- holding plate
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 1
Landscapes
- Holders For Sensitive Materials And Originals (AREA)
Description
第１図は本考案の一実施例を示す構成ブロツク
図、第２図及び第３図は本考案の原稿サイズ検出
機構と演算例を説明するための原稿台上方から見
た平面図、第４図は光センサと円弧状反射板の一
関係を示す概要構成図、第５図は国内用紙サイズ
の標準を示す図、第６図ａ，ｂ，ｃ，ｄ，ｅは本
考案の制御手順の一実施例を示すフローチヤート
図である。
１……原稿台、２……原稿、３……原稿押え板
、４……スイツチ、５……ロツド、６……発光素
子、７……受光素子、８……モータ、９……光セ
ンサ、１０……円弧状反射板、１１……モータ駆
動回路、１２……エンコーダ、１３……発光素子
駆動回路、１４……制御回路、１５……出力イン
タフエース、１６……ＣＰＵ、１７……入力イン
タフエース、１８……ＲＯＭ、１９……ＲＡＭ。
FIG. 1 is a configuration block diagram showing an embodiment of the present invention, FIGS. 2 and 3 are plan views seen from above the document table for explaining the document size detection mechanism and calculation example of the present invention, and FIG. The figure is a schematic configuration diagram showing the relationship between the optical sensor and the arcuate reflector, Figure 5 is a diagram showing the domestic paper size standard, and Figures 6 a, b, c, d, and e are diagrams showing the control procedure of the present invention. FIG. 2 is a flowchart showing an example. 1... Original table, 2... Original, 3... Original holding plate, 4... Switch, 5... Rod, 6... Light emitting element, 7... Light receiving element, 8... Motor, 9... Light sensor , 10... Arc-shaped reflector, 11... Motor drive circuit, 12... Encoder, 13... Light emitting element drive circuit, 14... Control circuit, 15... Output interface, 16... CPU, 17... Input interface, 18...ROM, 19...RAM.
Claims (1)
せる原稿押え板と、原稿押え板の開閉状態を検出
するスイツチ手段と、原稿台下部に水平に回転駆
動される様に配置され発光素子及び受光素子を有
した少なくとも二組の光センサ手段と、上記発光
素子からの光を原稿方向に回折しまた原稿からの
反射光を上記受光素子方向に回折する円弧状の光
反射板と、上記光センサの回転角度または回転駆
動制御パルスの数と原稿からの反射光とから原稿
サイズまたは原稿載置状態及び原稿の有無を判定
する制御部とを備えたことを特徴とする複写機の
原稿サイズ検知装置。 A document holding plate that presses the top surface of the original placed on the document table, a switch means that detects the opening/closing state of the document holding plate, and a light-emitting element and a light receiving device arranged to be rotated horizontally at the bottom of the document table. at least two sets of optical sensor means each having an element; an arcuate light reflecting plate that diffracts light from the light emitting element toward the document and diffracts reflected light from the document toward the light receiving element; and the optical sensor. A document size detection device for a copying machine, comprising: a control unit that determines the document size, document placement state, and presence or absence of the document based on the rotation angle of the document or the number of rotation drive control pulses and reflected light from the document. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7220790U JPH0431136U (en) | 1990-07-06 | 1990-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7220790U JPH0431136U (en) | 1990-07-06 | 1990-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0431136U true JPH0431136U (en) | 1992-03-12 |
Family
ID=31609943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7220790U Pending JPH0431136U (en) | 1990-07-06 | 1990-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431136U (en) |
-
1990
- 1990-07-06 JP JP7220790U patent/JPH0431136U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59166239U (en) | Copy machine original size detection device | |
| JPH0431136U (en) | ||
| JPH0433046U (en) | ||
| GB2064797A (en) | Photocopier platen cover | |
| JPH0197350U (en) | ||
| JPS58141237U (en) | Copy machine document edge detection device | |
| JPH03114840U (en) | ||
| JPH0367328U (en) | ||
| JPH0171731U (en) | ||
| JPH03130661U (en) | ||
| JPH0236260U (en) | ||
| JPH0349553U (en) | ||
| JPH0431137U (en) | ||
| JPS6449855U (en) | ||
| JPS63177849U (en) | ||
| JPH036639U (en) | ||
| JPH0177639U (en) | ||
| JPS61199967U (en) | ||
| JPS62177163U (en) | ||
| JPH0331729U (en) | ||
| JPH0344368U (en) | ||
| JPS6294331U (en) | ||
| JPH0293868U (en) | ||
| JPH0346276U (en) | ||
| JPS6152868U (en) |