JPS57157682A - Facsimile device - Google Patents

Facsimile device

Info

Publication number
JPS57157682A
JPS57157682A JP56043430A JP4343081A JPS57157682A JP S57157682 A JPS57157682 A JP S57157682A JP 56043430 A JP56043430 A JP 56043430A JP 4343081 A JP4343081 A JP 4343081A JP S57157682 A JPS57157682 A JP S57157682A
Authority
JP
Japan
Prior art keywords
manuscript
board
scanning
time
optical unit
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
JP56043430A
Other languages
Japanese (ja)
Inventor
Takeshi Ikeda
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP56043430A priority Critical patent/JPS57157682A/en
Publication of JPS57157682A publication Critical patent/JPS57157682A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To reduce erroneous operation and improve the usage by measuring the time of no transmitted manuscript exists in a prescribed position or no transmission operation is performd, and switching the magnification mode according to this measured time. CONSTITUTION:When a manuscript 59 to be transmitted is put on a transparent manuscript board 58 such as a glass plate and the manuscript is read out by shifting a scanning optical unit relatively to the manuscript board, a sensor 64 detects whether the manuscript 59 is put on the manuscript board 58 or not and the detected signal is made the standard of restration of the optical system. Namely, if the measurement of time is started after removing the manuscript from the board 58 and the manuscript does not exist on the board for a fixed period, the optical unit is restored to the standard mode. For an example of other mode restoration, the measurement of time may be started after completing the scanning of the optical unit. The scanning may be finished at the time when the unit is returned to the starting position or scanning direction is changed after completing preceeding scanning.
JP56043430A 1981-03-25 1981-03-25 Facsimile device Pending JPS57157682A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56043430A JPS57157682A (en) 1981-03-25 1981-03-25 Facsimile device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56043430A JPS57157682A (en) 1981-03-25 1981-03-25 Facsimile device

Publications (1)

Publication Number Publication Date
JPS57157682A true JPS57157682A (en) 1982-09-29

Family

ID=12663475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56043430A Pending JPS57157682A (en) 1981-03-25 1981-03-25 Facsimile device

Country Status (1)

Country Link
JP (1) JPS57157682A (en)

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