JPS5647053A - Device for preventing mislaying of original paper in copying machine - Google Patents

Device for preventing mislaying of original paper in copying machine

Info

Publication number
JPS5647053A
JPS5647053A JP12276379A JP12276379A JPS5647053A JP S5647053 A JPS5647053 A JP S5647053A JP 12276379 A JP12276379 A JP 12276379A JP 12276379 A JP12276379 A JP 12276379A JP S5647053 A JPS5647053 A JP S5647053A
Authority
JP
Japan
Prior art keywords
original paper
mislaying
output
copying
copying machine
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
JP12276379A
Other languages
Japanese (ja)
Other versions
JPH0137733B2 (en
Inventor
Kiyotaka Ochiai
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.)
Tamura Electric Works Ltd
Original Assignee
Tamura Electric Works 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 Tamura Electric Works Ltd filed Critical Tamura Electric Works Ltd
Priority to JP12276379A priority Critical patent/JPS5647053A/en
Publication of JPS5647053A publication Critical patent/JPS5647053A/en
Publication of JPH0137733B2 publication Critical patent/JPH0137733B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
  • Counters In Electrophotography And Two-Sided Copying (AREA)

Abstract

PURPOSE:To prevent the occurrence of mislaying of original paper with respect to a copying machine requiring key means by so constituting the device in association to this key means that when the key means is removed the checking and announcing of the mislaying of original paper are performed. CONSTITUTION:When the key means is removed from the copying machine upon ending of copying work and if original paper is already on a copying glass surface 9, a photodetecting circuit 4 does not produce any output. If the original paper is on the copying glass 9, the light from a light emitting element PT is reflected by the original paper and enters a photodetector PL. Then, the photodetector PL goes on and the photodetecting circuit 4 sends the output to the one input end of a coincidence gate 5. Since the output of a monostable multivibrator 2 is held inputted to the other input end thereof, the coincidence gate 5 sends a coincidence output to an amplifying circuit 6. The output of the amplifying circuit is supplied to a buzzer 7, by which the mislaying of the original paper is announced. In this way, the mislaying of the original paper may be prevented.
JP12276379A 1979-09-25 1979-09-25 Device for preventing mislaying of original paper in copying machine Granted JPS5647053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12276379A JPS5647053A (en) 1979-09-25 1979-09-25 Device for preventing mislaying of original paper in copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12276379A JPS5647053A (en) 1979-09-25 1979-09-25 Device for preventing mislaying of original paper in copying machine

Publications (2)

Publication Number Publication Date
JPS5647053A true JPS5647053A (en) 1981-04-28
JPH0137733B2 JPH0137733B2 (en) 1989-08-09

Family

ID=14844003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12276379A Granted JPS5647053A (en) 1979-09-25 1979-09-25 Device for preventing mislaying of original paper in copying machine

Country Status (1)

Country Link
JP (1) JPS5647053A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5967557A (en) * 1982-10-11 1984-04-17 Konishiroku Photo Ind Co Ltd Electrophotographic copying machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132350A (en) * 1977-04-22 1978-11-18 Masaya Nagai Manuscript takeeofffforget warning device in copier
JPS54104837A (en) * 1978-02-03 1979-08-17 Nippon Denso Co Ltd Controller of copying machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132350A (en) * 1977-04-22 1978-11-18 Masaya Nagai Manuscript takeeofffforget warning device in copier
JPS54104837A (en) * 1978-02-03 1979-08-17 Nippon Denso Co Ltd Controller of copying machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5967557A (en) * 1982-10-11 1984-04-17 Konishiroku Photo Ind Co Ltd Electrophotographic copying machine

Also Published As

Publication number Publication date
JPH0137733B2 (en) 1989-08-09

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