JPS57124377A - Detecting method for overlapped transfer paper delivery - Google Patents

Detecting method for overlapped transfer paper delivery

Info

Publication number
JPS57124377A
JPS57124377A JP917181A JP917181A JPS57124377A JP S57124377 A JPS57124377 A JP S57124377A JP 917181 A JP917181 A JP 917181A JP 917181 A JP917181 A JP 917181A JP S57124377 A JPS57124377 A JP S57124377A
Authority
JP
Japan
Prior art keywords
transfer paper
circuit
photodetector
delivery
reference value
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
JP917181A
Other languages
Japanese (ja)
Inventor
Shozo Miyawaki
Akira Ikoma
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 JP917181A priority Critical patent/JPS57124377A/en
Publication of JPS57124377A publication Critical patent/JPS57124377A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5029—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the copy material characteristics, e.g. weight, thickness

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To detect the thickness of transfer paper of various thickness, by providing a transfer paper overlapping delivery detecting section in a transfer paper path before copying, making reference set of thickness with the 1st paper and detecting overlapping delivery from the 2nd sheet. CONSTITUTION:A transfer paper passes through between a light emitting element 1 and a photodetector 2. At the transfer paper for the 1st, no overlapped delivery is detected and a reference signal is given from a reference set circuit 6 to an overlapping delivery discriminating circuit 8 when the 2nd copy operation started, and an output from the photodetector 2 is given to the detection section via an AD converter 5. The said circuit 8 compares an output from the photodetector 2 with the reference value and given the result to a control circuit 3. At the discrimination as no overlapping delivery, the reference value of the circuit 6 is corrected based on an output of a photodetector, and if discriminated as overlapping delivery, the reference value of a reference value set circuit 6 is not corrected.
JP917181A 1981-01-24 1981-01-24 Detecting method for overlapped transfer paper delivery Pending JPS57124377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP917181A JPS57124377A (en) 1981-01-24 1981-01-24 Detecting method for overlapped transfer paper delivery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP917181A JPS57124377A (en) 1981-01-24 1981-01-24 Detecting method for overlapped transfer paper delivery

Publications (1)

Publication Number Publication Date
JPS57124377A true JPS57124377A (en) 1982-08-03

Family

ID=11713132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP917181A Pending JPS57124377A (en) 1981-01-24 1981-01-24 Detecting method for overlapped transfer paper delivery

Country Status (1)

Country Link
JP (1) JPS57124377A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853258A2 (en) * 1997-01-13 1998-07-15 Xerox Corporation A sheet transport system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853258A2 (en) * 1997-01-13 1998-07-15 Xerox Corporation A sheet transport system
EP0853258A3 (en) * 1997-01-13 1998-11-04 Xerox Corporation A sheet transport system

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