JPS5787669A - Scanner drive control system - Google Patents

Scanner drive control system

Info

Publication number
JPS5787669A
JPS5787669A JP16374280A JP16374280A JPS5787669A JP S5787669 A JPS5787669 A JP S5787669A JP 16374280 A JP16374280 A JP 16374280A JP 16374280 A JP16374280 A JP 16374280A JP S5787669 A JPS5787669 A JP S5787669A
Authority
JP
Japan
Prior art keywords
scanner
deceleration
counter
prom
read out
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
JP16374280A
Other languages
Japanese (ja)
Inventor
Shigeru Yamazaki
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 JP16374280A priority Critical patent/JPS5787669A/en
Publication of JPS5787669A publication Critical patent/JPS5787669A/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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Input (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To prevent run away of a scanner, by outputting a forcing return instruction, when a deceleration instruction counter reaches a prescribed count value before the detection output production of a return sensor, at the returning operation of a scanner drive motor. CONSTITUTION:A scanning speed data is read out from a PROM 30 in response to a start instruction and it is given to a motor drive control circuit from speed set circuits 331-336. A counter 29 starts counting in response to the output of deceleration sensors S1-S6, and the deceleration data is sequentially read out from the PROM 30 according to the content. When the count of the counter 29 reaches a prescribed number, the return speed data is read out from the output of the PROM 30 and the motor is reversed. If the deceleration of the scanner is not sufficiently done due to some causes, a reversing FF is compulsively set independently of the content of the counter 29. Thus, the run away of the scanner can be avoided.
JP16374280A 1980-11-20 1980-11-20 Scanner drive control system Pending JPS5787669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16374280A JPS5787669A (en) 1980-11-20 1980-11-20 Scanner drive control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16374280A JPS5787669A (en) 1980-11-20 1980-11-20 Scanner drive control system

Publications (1)

Publication Number Publication Date
JPS5787669A true JPS5787669A (en) 1982-06-01

Family

ID=15779809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16374280A Pending JPS5787669A (en) 1980-11-20 1980-11-20 Scanner drive control system

Country Status (1)

Country Link
JP (1) JPS5787669A (en)

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