JPS5710172A - Original size detecting method of copying machine - Google Patents
Original size detecting method of copying machineInfo
- Publication number
- JPS5710172A JPS5710172A JP8365680A JP8365680A JPS5710172A JP S5710172 A JPS5710172 A JP S5710172A JP 8365680 A JP8365680 A JP 8365680A JP 8365680 A JP8365680 A JP 8365680A JP S5710172 A JPS5710172 A JP S5710172A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- light
- original
- receiver
- component reflected
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/60—Apparatus which relate to the handling of originals
- G03G15/607—Apparatus which relate to the handling of originals for detecting size, presence or position of original
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Holders For Sensitive Materials And Originals (AREA)
Abstract
PURPOSE:To detect the presence or absence of an original as well as the size of the original without disturbing the exposure route, by obliquely cutting the edge surface of the original placing contact glass and providing a light emitter and a light receiver opposite to the cut oblique surface of the glass. CONSTITUTION:The edge surface of a contact glass 1 fixed to a frame 2 is cut obliquely, and a light emitter 3 and a light receiver 4 are provided opposite to the cut oblique surface. When no original is put on the glass 1, the light sent from the emitter 3 is divided to the component advancing upward after passing through the glass 1 and the component reflected regularly on the surface of glass. Both components are not reflected to the side of the incident optical path and thus not made incident to the receiver 4. When an original 5 exists on the glass 1, the light is divided to the component reflected regularly on the surface of the glass and the component reflected irregularly on the surface of original 5. A part of the light component reflected irregularly comes back to the incident surface, accordingly, the light is made incident to the receiver 4 to be converted into the electric signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8365680A JPS5710172A (en) | 1980-06-20 | 1980-06-20 | Original size detecting method of copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8365680A JPS5710172A (en) | 1980-06-20 | 1980-06-20 | Original size detecting method of copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5710172A true JPS5710172A (en) | 1982-01-19 |
Family
ID=13808490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8365680A Pending JPS5710172A (en) | 1980-06-20 | 1980-06-20 | Original size detecting method of copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5710172A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61193141A (en) * | 1985-02-21 | 1986-08-27 | Mita Ind Co Ltd | Original detector |
JPS61148048U (en) * | 1985-03-04 | 1986-09-12 | ||
JPS626241A (en) * | 1985-07-02 | 1987-01-13 | Matsushita Electric Ind Co Ltd | Original size detecting device for copying machine |
JPS626105A (en) * | 1985-07-02 | 1987-01-13 | Matsushita Electric Ind Co Ltd | Original size detector for copying machine |
JPS62206571A (en) * | 1986-03-06 | 1987-09-11 | Sharp Corp | Copying machine with original detecting function |
JPH02103526A (en) * | 1988-08-18 | 1990-04-16 | Eastman Kodak Co | Electrostatic photographic copier |
-
1980
- 1980-06-20 JP JP8365680A patent/JPS5710172A/en active Pending
Non-Patent Citations (1)
Title |
---|
XEROX DISCLOSURE JOURNAL * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61193141A (en) * | 1985-02-21 | 1986-08-27 | Mita Ind Co Ltd | Original detector |
JPS61148048U (en) * | 1985-03-04 | 1986-09-12 | ||
JPS626241A (en) * | 1985-07-02 | 1987-01-13 | Matsushita Electric Ind Co Ltd | Original size detecting device for copying machine |
JPS626105A (en) * | 1985-07-02 | 1987-01-13 | Matsushita Electric Ind Co Ltd | Original size detector for copying machine |
JPH0612246B2 (en) * | 1985-07-02 | 1994-02-16 | 松下電器産業株式会社 | Copier Original size detector |
JPS62206571A (en) * | 1986-03-06 | 1987-09-11 | Sharp Corp | Copying machine with original detecting function |
JPH02103526A (en) * | 1988-08-18 | 1990-04-16 | Eastman Kodak Co | Electrostatic photographic copier |
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