JPS5595805A - Original paper size detector for copying machine - Google Patents

Original paper size detector for copying machine

Info

Publication number
JPS5595805A
JPS5595805A JP311179A JP311179A JPS5595805A JP S5595805 A JPS5595805 A JP S5595805A JP 311179 A JP311179 A JP 311179A JP 311179 A JP311179 A JP 311179A JP S5595805 A JPS5595805 A JP S5595805A
Authority
JP
Japan
Prior art keywords
original
light
copying machine
paper size
stage
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
Application number
JP311179A
Other languages
Japanese (ja)
Other versions
JPS5913727B2 (en
Inventor
Shigeru Horii
Hideo Nishiyama
Teruaki Shigeta
Kazutaka Koyama
Yoshihiko Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP54003111A priority Critical patent/JPS5913727B2/en
Publication of JPS5595805A publication Critical patent/JPS5595805A/en
Publication of JPS5913727B2 publication Critical patent/JPS5913727B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Manual Feeding Of Sheets (AREA)

Abstract

PURPOSE: To ensure the accurate optical detection for the several original paper sizes with the copying mechine by providing the light recurrent reflection layer to the original side of the original stage cover and thus obtaining the accurate detection reflected light to the sensor.
CONSTITUTION: The light from illuminator 1 irradiates original 6 on original stage 5, and the reflected light forms the electrostatic latent image onto photosensitive drum 4 through slit 11 after passing through movable mirrors 2a, 2b and 2c, lens 3 and fixed mirror 2d each. Then light recurrent reflection layer 7 is attached to the lower part of original cover 8 of the copying machine and in correspondence to the optical axes of paper size sensors 9 and 10. Thus the reception amount of the light varies at the light reception parts 9b and 10b of sensors 9 and 10 each and in accordance with the size of original put on the original stage. As a result, the accurate detection is possible for several original sizes.
COPYRIGHT: (C)1980,JPO&Japio
JP54003111A 1979-01-12 1979-01-12 Original paper size detection device in copying machines Expired JPS5913727B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54003111A JPS5913727B2 (en) 1979-01-12 1979-01-12 Original paper size detection device in copying machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54003111A JPS5913727B2 (en) 1979-01-12 1979-01-12 Original paper size detection device in copying machines

Publications (2)

Publication Number Publication Date
JPS5595805A true JPS5595805A (en) 1980-07-21
JPS5913727B2 JPS5913727B2 (en) 1984-03-31

Family

ID=11548232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54003111A Expired JPS5913727B2 (en) 1979-01-12 1979-01-12 Original paper size detection device in copying machines

Country Status (1)

Country Link
JP (1) JPS5913727B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58198963A (en) * 1982-04-28 1983-11-19 ゼロツクス・コ−ポレ−シヨン Method and device for selectively scanning document
JPS59225669A (en) * 1983-06-07 1984-12-18 Canon Inc Picture processing device
JPS626241A (en) * 1985-07-02 1987-01-13 Matsushita Electric Ind Co Ltd Original size detecting device for copying machine
JPS6243633A (en) * 1985-08-22 1987-02-25 Fuji Xerox Co Ltd Original size detecting device for copying machine
JPS63211870A (en) * 1988-01-22 1988-09-02 Canon Inc Image scanner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58198963A (en) * 1982-04-28 1983-11-19 ゼロツクス・コ−ポレ−シヨン Method and device for selectively scanning document
JPS59225669A (en) * 1983-06-07 1984-12-18 Canon Inc Picture processing device
JPH0336353B2 (en) * 1983-06-07 1991-05-31 Canon Kk
JPS626241A (en) * 1985-07-02 1987-01-13 Matsushita Electric Ind Co Ltd Original size detecting device for copying machine
JPS6243633A (en) * 1985-08-22 1987-02-25 Fuji Xerox Co Ltd Original size detecting device for copying machine
JPS63211870A (en) * 1988-01-22 1988-09-02 Canon Inc Image scanner

Also Published As

Publication number Publication date
JPS5913727B2 (en) 1984-03-31

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