JPS5483438A - Original detecting method - Google Patents
Original detecting methodInfo
- Publication number
- JPS5483438A JPS5483438A JP15144677A JP15144677A JPS5483438A JP S5483438 A JPS5483438 A JP S5483438A JP 15144677 A JP15144677 A JP 15144677A JP 15144677 A JP15144677 A JP 15144677A JP S5483438 A JPS5483438 A JP S5483438A
- Authority
- JP
- Japan
- Prior art keywords
- original
- sensing element
- image sensing
- detect
- solid
- 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
Landscapes
- Holders For Sensitive Materials And Originals (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Facsimiles In General (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
PURPOSE: To detect not only the original sizes but also whether original position is normal or not through addition of slight circuits without providing any separate switch by counting the continuous black values from the sanning end in scanning width by an image sensing element.
CONSTITUTION: For the origianl 1 placed on contact glass 2 and pressed by a pressure plate 3, the reflected light from a lighting system is imaged on a solid-state image sensing element 5 through a lens 4. The solid-state image sensing element 5 which is of line sensor type using CCDs produces charges according to the quantity of incident light through selfscanning. The charges are then once stored in the transfer path and the photo electric conversion signal is time serially produced by the transfer clock. In the separately provided read part, the sampling pulses synchronized to the clock pulses having scanned the original 1 are counted starting from the black value at the end part of the original to detect the original width Wp. From the subtracted value from the scanning width Wc, the original size and whether the original is in the normal position or not is judged.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15144677A JPS5483438A (en) | 1977-12-15 | 1977-12-15 | Original detecting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15144677A JPS5483438A (en) | 1977-12-15 | 1977-12-15 | Original detecting method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5483438A true JPS5483438A (en) | 1979-07-03 |
JPS6247026B2 JPS6247026B2 (en) | 1987-10-06 |
Family
ID=15518767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15144677A Granted JPS5483438A (en) | 1977-12-15 | 1977-12-15 | Original detecting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5483438A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5715564A (en) * | 1980-07-02 | 1982-01-26 | Canon Inc | Facsimile device |
JPS57123764A (en) * | 1981-01-23 | 1982-08-02 | Canon Inc | Image scanner |
JPS57135573A (en) * | 1981-02-16 | 1982-08-21 | Canon Inc | Picture reader |
JPS59210764A (en) * | 1983-05-16 | 1984-11-29 | Nec Corp | Circuit for detecting size of original |
JPS59225670A (en) * | 1983-06-07 | 1984-12-18 | Canon Inc | Picture processing device |
JPH02131662A (en) * | 1988-11-11 | 1990-05-21 | Fuji Xerox Co Ltd | Original position detection processing system for picture processor |
US5198853A (en) * | 1990-11-16 | 1993-03-30 | Konica Corporation | Document size detection apparatus |
JP2008287145A (en) * | 2007-05-21 | 2008-11-27 | Ricoh Co Ltd | Photosensor and image forming apparatus |
US7471423B2 (en) | 2003-09-26 | 2008-12-30 | Seiko Epson Corporation | Image processing system and image processing method |
JP2014199975A (en) * | 2013-03-29 | 2014-10-23 | 富士通株式会社 | Program, loading position determination method, and loading position determination device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7471424B2 (en) | 2003-02-26 | 2008-12-30 | Canon Kabushiki Kaisha | Original size detecting apparatus, original size detecting method, and program for original size detection |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49135534A (en) * | 1973-04-28 | 1974-12-27 | ||
JPS5042842A (en) * | 1973-05-23 | 1975-04-18 | ||
JPS5122307A (en) * | 1974-08-20 | 1976-02-23 | Oki Electric Ind Co Ltd | |
JPS52136630A (en) * | 1976-05-11 | 1977-11-15 | Nippon Telegr & Teleph Corp <Ntt> | Inclination detection system |
-
1977
- 1977-12-15 JP JP15144677A patent/JPS5483438A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49135534A (en) * | 1973-04-28 | 1974-12-27 | ||
JPS5042842A (en) * | 1973-05-23 | 1975-04-18 | ||
JPS5122307A (en) * | 1974-08-20 | 1976-02-23 | Oki Electric Ind Co Ltd | |
JPS52136630A (en) * | 1976-05-11 | 1977-11-15 | Nippon Telegr & Teleph Corp <Ntt> | Inclination detection system |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0123030B2 (en) * | 1980-07-02 | 1989-04-28 | Canon Kk | |
JPS5715564A (en) * | 1980-07-02 | 1982-01-26 | Canon Inc | Facsimile device |
JPH0415661B2 (en) * | 1981-01-23 | 1992-03-18 | Canon Kk | |
JPS57123764A (en) * | 1981-01-23 | 1982-08-02 | Canon Inc | Image scanner |
JPS57135573A (en) * | 1981-02-16 | 1982-08-21 | Canon Inc | Picture reader |
JPS59210764A (en) * | 1983-05-16 | 1984-11-29 | Nec Corp | Circuit for detecting size of original |
JPS59225670A (en) * | 1983-06-07 | 1984-12-18 | Canon Inc | Picture processing device |
JPH02131662A (en) * | 1988-11-11 | 1990-05-21 | Fuji Xerox Co Ltd | Original position detection processing system for picture processor |
US5198853A (en) * | 1990-11-16 | 1993-03-30 | Konica Corporation | Document size detection apparatus |
US7471423B2 (en) | 2003-09-26 | 2008-12-30 | Seiko Epson Corporation | Image processing system and image processing method |
US8023158B2 (en) | 2003-09-26 | 2011-09-20 | Seiko Epson Corporation | Image processing system and image processing method |
JP2008287145A (en) * | 2007-05-21 | 2008-11-27 | Ricoh Co Ltd | Photosensor and image forming apparatus |
JP2014199975A (en) * | 2013-03-29 | 2014-10-23 | 富士通株式会社 | Program, loading position determination method, and loading position determination device |
Also Published As
Publication number | Publication date |
---|---|
JPS6247026B2 (en) | 1987-10-06 |
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