JPS5788464A - Electrostatic recording device - Google Patents

Electrostatic recording device

Info

Publication number
JPS5788464A
JPS5788464A JP55164208A JP16420880A JPS5788464A JP S5788464 A JPS5788464 A JP S5788464A JP 55164208 A JP55164208 A JP 55164208A JP 16420880 A JP16420880 A JP 16420880A JP S5788464 A JPS5788464 A JP S5788464A
Authority
JP
Japan
Prior art keywords
motor
recording paper
fixing roller
driving
speed
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
JP55164208A
Other languages
Japanese (ja)
Inventor
Masato Ogiwara
Masamitsu Tsubaki
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 JP55164208A priority Critical patent/JPS5788464A/en
Publication of JPS5788464A publication Critical patent/JPS5788464A/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
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2064—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat combined with pressure

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

PURPOSE:To prevent overtension of recording paper without forming it into a loop, by controlling a driving speed of a fixing roller by a detecting signal of a carrying speed of the recording paper, also detecting its slackness, and controlling an operation of the fixing roller. CONSTITUTION:A carrying roller 5 is driven by a paper driving motor 8 of a pulse motor, a fixing roller 14 is driven by a fixing roller driving motor 19 of a DC motor, a controlling circuit 20 is connected, and a slackning detecting switch 21 is provided. In this constitution, in accordance with a step pulse signal of the motor 8, sparse and dense information of a driving frequency is detected by a carrying speed detecting means 38 consisting of an oscillator 19, etc., in accordance with which driving voltage of the motor 19 is switched to 3 stages such as high, middle and low speed by a motor speed control means 57 consisting of resistances 39 41, etc. In the event of overtesnion of recording paper 1, the switch 21 is turned on and the motor 19 is stopped temporarily. In this way, the overtension of the recording paper 1 is prevented.
JP55164208A 1980-11-21 1980-11-21 Electrostatic recording device Pending JPS5788464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55164208A JPS5788464A (en) 1980-11-21 1980-11-21 Electrostatic recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55164208A JPS5788464A (en) 1980-11-21 1980-11-21 Electrostatic recording device

Publications (1)

Publication Number Publication Date
JPS5788464A true JPS5788464A (en) 1982-06-02

Family

ID=15788714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55164208A Pending JPS5788464A (en) 1980-11-21 1980-11-21 Electrostatic recording device

Country Status (1)

Country Link
JP (1) JPS5788464A (en)

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