JPS5660463A - Original size detector of copying machine - Google Patents

Original size detector of copying machine

Info

Publication number
JPS5660463A
JPS5660463A JP13588779A JP13588779A JPS5660463A JP S5660463 A JPS5660463 A JP S5660463A JP 13588779 A JP13588779 A JP 13588779A JP 13588779 A JP13588779 A JP 13588779A JP S5660463 A JPS5660463 A JP S5660463A
Authority
JP
Japan
Prior art keywords
gates
original
size
originals
pattern
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
Application number
JP13588779A
Other languages
Japanese (ja)
Inventor
Hiroaki Ueno
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP13588779A priority Critical patent/JPS5660463A/en
Publication of JPS5660463A publication Critical patent/JPS5660463A/en
Pending legal-status Critical Current

Links

Landscapes

  • Holders For Sensitive Materials And Originals (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE: To make it possible to detect the original size for originals of any type, by combining the mechanical contact system and the optical system to constitute a device and by making one detection signal effective according to the thickness of originals.
CONSTITUTION: When the original put on original stand 1 is thick such as a book type, pattern E and counductive rubber 4 are separated from each other and become nonconductive. Consequently, signal (e) from pattern E becomes high level H, and AND gates G1WG4 are closed, and AND gates G5WG8 are opened, and the size detection signal from the detecting circuit 14 of the size of the optical original passes through these gates and is output. Next, when original 2 is a thin sheet, signal (e) from pattern E becomes low level L, and AND gates G5WG8 are closed, and AND gates G1WG4 are opened, and the size detection signal from the detecting circuit 6 for the original size of the mechanical contact system passes through these gates and is output. Thus, the size can be detected for originals of any type.
COPYRIGHT: (C)1981,JPO&Japio
JP13588779A 1979-10-23 1979-10-23 Original size detector of copying machine Pending JPS5660463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13588779A JPS5660463A (en) 1979-10-23 1979-10-23 Original size detector of copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13588779A JPS5660463A (en) 1979-10-23 1979-10-23 Original size detector of copying machine

Publications (1)

Publication Number Publication Date
JPS5660463A true JPS5660463A (en) 1981-05-25

Family

ID=15162104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13588779A Pending JPS5660463A (en) 1979-10-23 1979-10-23 Original size detector of copying machine

Country Status (1)

Country Link
JP (1) JPS5660463A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140950U (en) * 1984-02-29 1985-09-18 日本メクトロン株式会社 Copy machine original size detection mechanism
JPS60263934A (en) * 1984-06-13 1985-12-27 Canon Inc Image processor
JP2016152564A (en) * 2015-02-18 2016-08-22 京セラドキュメントソリューションズ株式会社 Image reading device and image forming apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140950U (en) * 1984-02-29 1985-09-18 日本メクトロン株式会社 Copy machine original size detection mechanism
JPS60263934A (en) * 1984-06-13 1985-12-27 Canon Inc Image processor
JP2016152564A (en) * 2015-02-18 2016-08-22 京セラドキュメントソリューションズ株式会社 Image reading device and image forming apparatus

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