JPH01136479U - - Google Patents
Info
- Publication number
- JPH01136479U JPH01136479U JP3297988U JP3297988U JPH01136479U JP H01136479 U JPH01136479 U JP H01136479U JP 3297988 U JP3297988 U JP 3297988U JP 3297988 U JP3297988 U JP 3297988U JP H01136479 U JPH01136479 U JP H01136479U
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- light
- slits
- transmission holes
- transmission
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
Description
第1図は本考案の実施例に係るセンサの配置図
、第2図は本考案を採用した自動原稿送り装置の
側面図、第3図はその一部拡大図、第4図及び第
5図は他の実施例を示すセンサの配置図、第6図
及び第7図は従来のセンサの配置図である。
20……シート検出装置(レジスト部センサ)
、20a……発光部(発光素子)、20b……受
光部(受光素子)、21……遮蔽部材(発光部カ
バー)、22……遮蔽部材(受光部カバー)、2
1a……透過孔、22a……透過孔、21a′,
22a′……光路、P……シート(シート原稿)
。
Fig. 1 is a layout diagram of a sensor according to an embodiment of the present invention, Fig. 2 is a side view of an automatic document feeder employing the present invention, Fig. 3 is a partially enlarged view thereof, and Figs. 4 and 5. 6 is a layout diagram of a sensor showing another embodiment, and FIGS. 6 and 7 are layout diagrams of a conventional sensor. 20... Sheet detection device (registration section sensor)
, 20a... Light emitting part (light emitting element), 20b... Light receiving part (light receiving element), 21... Shielding member (light emitting part cover), 22... Shielding member (light receiving part cover), 2
1a...Transmission hole, 22a...Transmission hole, 21a',
22a'...Optical path, P...Sheet (sheet original)
.
Claims (1)
一対の遮蔽部材を介して対向配置し、これら透過
孔の間に形成される光路の遮断の有無によりシー
トの有無を検出してなるシート検出装置において
、 前記両透過孔を所定長さのスリツトとし、かつ
これらスリツトを、その投影方向においてその長
手方向が交叉するように構成したことを特徴とす
るシート検出装置。[Claims for Utility Model Registration] A light-emitting part and a light-receiving part are arranged facing each other via a pair of shielding members each having a transmission hole, and the presence or absence of the sheet is determined by whether or not the optical path formed between these transmission holes is blocked. What is claimed is: 1. A sheet detection device for detecting a sheet, characterized in that both of the transmission holes are slits of a predetermined length, and the slits are configured such that their longitudinal directions intersect in the projection direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3297988U JPH062153Y2 (en) | 1988-03-12 | 1988-03-12 | Sheet detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3297988U JPH062153Y2 (en) | 1988-03-12 | 1988-03-12 | Sheet detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01136479U true JPH01136479U (en) | 1989-09-19 |
JPH062153Y2 JPH062153Y2 (en) | 1994-01-19 |
Family
ID=31259597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3297988U Expired - Lifetime JPH062153Y2 (en) | 1988-03-12 | 1988-03-12 | Sheet detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH062153Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012073075A (en) * | 2010-09-28 | 2012-04-12 | Fuji Xerox Co Ltd | Sensor, conveyance device and image forming apparatus |
-
1988
- 1988-03-12 JP JP3297988U patent/JPH062153Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012073075A (en) * | 2010-09-28 | 2012-04-12 | Fuji Xerox Co Ltd | Sensor, conveyance device and image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH062153Y2 (en) | 1994-01-19 |