JPS55137539A - Original size detecting system of copying machine - Google Patents
Original size detecting system of copying machineInfo
- Publication number
- JPS55137539A JPS55137539A JP4496079A JP4496079A JPS55137539A JP S55137539 A JPS55137539 A JP S55137539A JP 4496079 A JP4496079 A JP 4496079A JP 4496079 A JP4496079 A JP 4496079A JP S55137539 A JPS55137539 A JP S55137539A
- Authority
- JP
- Japan
- Prior art keywords
- original
- light emitting
- photo
- photo detector
- positions
- 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
Abstract
PURPOSE: To enable copying paper to be automatically selected according to original sizes by disposing the photo sensors consisting of light emitting elements and photo detectors respectively in the positions which do not overlap with any size of original placement.
CONSTITUTION: A light emitting element 10 as a light source is mounted to the holding member 11 secured to the copying machine body 1 to the position opposing to a photo detector 8 with an original platen 2 in-between and a photo sensor is constituted by this photo detector 8 and light emitting element 10. When the original S does not interpose between the photo detector 8 and light emitting element 10 on the original platen 2, an electrical output is obtainable from the photo detector 8 but when the original S interposes there, no electrical output is obtainable. The sensors are disposed in the positions AWD respectively where they do not overlap with any size of original placement positions smaller than four kinds of A3, A4, B4, B5 within the original placement positions of each size when said sizes are selected for the original sizes.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4496079A JPS55137539A (en) | 1979-04-13 | 1979-04-13 | Original size detecting system of copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4496079A JPS55137539A (en) | 1979-04-13 | 1979-04-13 | Original size detecting system of copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55137539A true JPS55137539A (en) | 1980-10-27 |
Family
ID=12706040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4496079A Pending JPS55137539A (en) | 1979-04-13 | 1979-04-13 | Original size detecting system of copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55137539A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59159152A (en) * | 1983-02-28 | 1984-09-08 | Fuji Xerox Co Ltd | Original size detector of copying machine |
JPS6133041U (en) * | 1984-07-28 | 1986-02-28 | 京セラミタ株式会社 | Document length detection device |
-
1979
- 1979-04-13 JP JP4496079A patent/JPS55137539A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59159152A (en) * | 1983-02-28 | 1984-09-08 | Fuji Xerox Co Ltd | Original size detector of copying machine |
JPS6133041U (en) * | 1984-07-28 | 1986-02-28 | 京セラミタ株式会社 | Document length detection device |
JPH0422347Y2 (en) * | 1984-07-28 | 1992-05-21 |
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