JPS56125987A - Motor deceleration control system for driving scanner - Google Patents

Motor deceleration control system for driving scanner

Info

Publication number
JPS56125987A
JPS56125987A JP2947980A JP2947980A JPS56125987A JP S56125987 A JPS56125987 A JP S56125987A JP 2947980 A JP2947980 A JP 2947980A JP 2947980 A JP2947980 A JP 2947980A JP S56125987 A JPS56125987 A JP S56125987A
Authority
JP
Japan
Prior art keywords
scanner
sensor
output
switch
driving
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
JP2947980A
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 JP2947980A priority Critical patent/JPS56125987A/en
Publication of JPS56125987A publication Critical patent/JPS56125987A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE:To suitably control high and low deceleration of a scanner by providing a sensor for detecting the various sizes of original pictures and associating the output of the sensor with size instruction, thereby stepwisely switching the driving voltage of the motor for driving the scanner. CONSTITUTION:When a size instruction switch SW1 is closed at A4 side, the Q output of a flip-flop FF becomes ''1''. When a scanner 1 is detected by an A4 size sensor S1, the output S1S of the sensor opens a switch SW2 through an AND gate 1, a reference voltage Vs is reduced in the amount corresponding to the voltage drop of a resistor R, and a low deceleration is applied to a motor M for driving the scanner. When the switch SW1 is closed at A3 side, the Q' output of the flip-flop FF becomes ''1''. When the scanner 1 is detected by an A3 size sensor S2, the output S2S from the sensor closes the switch SW2 through an AND gate 2. Thus, the resistor R is shortcircuited, and high deceleration is applied to the motor M.
JP2947980A 1980-03-08 1980-03-08 Motor deceleration control system for driving scanner Pending JPS56125987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2947980A JPS56125987A (en) 1980-03-08 1980-03-08 Motor deceleration control system for driving scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2947980A JPS56125987A (en) 1980-03-08 1980-03-08 Motor deceleration control system for driving scanner

Publications (1)

Publication Number Publication Date
JPS56125987A true JPS56125987A (en) 1981-10-02

Family

ID=12277216

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2947980A Pending JPS56125987A (en) 1980-03-08 1980-03-08 Motor deceleration control system for driving scanner

Country Status (1)

Country Link
JP (1) JPS56125987A (en)

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