JPS6165374U - - Google Patents
Info
- Publication number
- JPS6165374U JPS6165374U JP14857984U JP14857984U JPS6165374U JP S6165374 U JPS6165374 U JP S6165374U JP 14857984 U JP14857984 U JP 14857984U JP 14857984 U JP14857984 U JP 14857984U JP S6165374 U JPS6165374 U JP S6165374U
- Authority
- JP
- Japan
- Prior art keywords
- paper
- light
- emitting element
- light emitting
- amount
- 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 9
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
- Controlling Sheets Or Webs (AREA)
Description
第１図はこの考案に係る紙送り検知装置を複写
機の用紙搬送経路に設置した例を示す概略説明図
、第２図はこの考案に係る紙送り検知装置の一実
施例を示すブロツク図、第３図は従来における紙
送り検知装置の一例を示す要部説明図である。
〔符号説明〕、Ｓ１，Ｓ２，Ｓ３……紙送り検
出手段、Ｓ……反射率検出手段、１……用紙、２
……搬送経路、３……発光ダイオード（発光素子
）、４……フオトダイオード（センサ）。
FIG. 1 is a schematic explanatory diagram showing an example in which a paper feed detection device according to this invention is installed in a paper conveyance path of a copying machine, and FIG. 2 is a block diagram showing an embodiment of a paper feed detection device according to this invention. FIG. 3 is an explanatory diagram of essential parts of an example of a conventional paper feed detection device. [Description of symbols], S 1 , S 2 , S 3 ... Paper feed detection means, S ... Reflectance detection means, 1 ... Paper, 2
...transport route, 3...light emitting diode (light emitting element), 4... photodiode (sensor).
Claims (1)
記用紙の搬送経路中に所定光量の光を照射する発
光素子と、この発光素子からの照射光が用紙に照
射されたときに当該用紙からの反射光量を検出す
るセンサとを備え、このセンサの出力変化によつ
て用紙の通過状態を検知するようにした紙送り検
知装置において、使用する用紙の反射率を予め検
出する反射率検出手段を設け、この反射率検出手
段に出力に応じて上記発光素子からの照射光量を
変化させ、用紙通過時の用紙からの反射光量を所
定レベル以上に設定したことを特徴とする紙送り
検知装置。 A light emitting element that is installed at an appropriate location near the paper transport path and emits a predetermined amount of light into the paper transport path, and a light emitting element that reflects light from the paper when the light from the light emitting element is irradiated onto the paper. A paper feed detection device is provided with a sensor that detects the amount of light, and detects the passing state of the paper based on a change in the output of the sensor, and includes a reflectance detection means that detects the reflectance of the paper used in advance, A paper feed detection device characterized in that the amount of light irradiated from the light emitting element is changed according to the output of the reflectance detection means, and the amount of light reflected from the paper when the paper passes is set to a predetermined level or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14857984U JPS6165374U (en) | 1984-10-02 | 1984-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14857984U JPS6165374U (en) | 1984-10-02 | 1984-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6165374U true JPS6165374U (en) | 1986-05-06 |
Family
ID=30706784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14857984U Pending JPS6165374U (en) | 1984-10-02 | 1984-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6165374U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01223386A (en) * | 1988-03-02 | 1989-09-06 | Hitachi Ltd | Sheet paper detector |
| JPH04263154A (en) * | 1991-02-18 | 1992-09-18 | Mitsubishi Electric Corp | Position detector |
-
1984
- 1984-10-02 JP JP14857984U patent/JPS6165374U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01223386A (en) * | 1988-03-02 | 1989-09-06 | Hitachi Ltd | Sheet paper detector |
| JPH04263154A (en) * | 1991-02-18 | 1992-09-18 | Mitsubishi Electric Corp | Position detector |
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