JPS6461740A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPS6461740A
JPS6461740A JP62216395A JP21639587A JPS6461740A JP S6461740 A JPS6461740 A JP S6461740A JP 62216395 A JP62216395 A JP 62216395A JP 21639587 A JP21639587 A JP 21639587A JP S6461740 A JPS6461740 A JP S6461740A
Authority
JP
Japan
Prior art keywords
document
ejection
feeder
damage
detection sensor
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
JP62216395A
Other languages
Japanese (ja)
Other versions
JP2582085B2 (en
Inventor
Yasushi Takagi
Koji Ishigaki
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 JP62216395A priority Critical patent/JP2582085B2/en
Publication of JPS6461740A publication Critical patent/JPS6461740A/en
Application granted granted Critical
Publication of JP2582085B2 publication Critical patent/JP2582085B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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 prevent the damage of document and to eliminate the waste of an operating time by detecting whether the document is left or not, driving an automatic document feeder if the document is left and ejecting the document. CONSTITUTION:The detection of the left document is performed with a density detection sensor and a size detection sensor and the existence of the document is judged according to the output value and output difference from both sensors. It the document is left, an ejection sensor installed in the ejection roller part of a document feeder DF detects it and drives the DF so as to perform the ejection process of the left document. When the ejection process is performed, the DF is drive again to feed in the document which is going to be copied. Thus, the damage and the rimple, etc., of the document can be prevented in case where the document is fed in by using an automatic document feeder ADF without noticing the left document.
JP62216395A 1987-09-01 1987-09-01 Image forming device Expired - Fee Related JP2582085B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62216395A JP2582085B2 (en) 1987-09-01 1987-09-01 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62216395A JP2582085B2 (en) 1987-09-01 1987-09-01 Image forming device

Publications (2)

Publication Number Publication Date
JPS6461740A true JPS6461740A (en) 1989-03-08
JP2582085B2 JP2582085B2 (en) 1997-02-19

Family

ID=16687891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62216395A Expired - Fee Related JP2582085B2 (en) 1987-09-01 1987-09-01 Image forming device

Country Status (1)

Country Link
JP (1) JP2582085B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03227855A (en) * 1990-01-30 1991-10-08 Ricoh Co Ltd Document read device
JP2010224241A (en) * 2009-03-24 2010-10-07 Fuji Xerox Co Ltd Image reading apparatus, copying machine and program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03227855A (en) * 1990-01-30 1991-10-08 Ricoh Co Ltd Document read device
JP2010224241A (en) * 2009-03-24 2010-10-07 Fuji Xerox Co Ltd Image reading apparatus, copying machine and program

Also Published As

Publication number Publication date
JP2582085B2 (en) 1997-02-19

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees