JPS5767970A - Controller of copying machine - Google Patents

Controller of copying machine

Info

Publication number
JPS5767970A
JPS5767970A JP55144143A JP14414380A JPS5767970A JP S5767970 A JPS5767970 A JP S5767970A JP 55144143 A JP55144143 A JP 55144143A JP 14414380 A JP14414380 A JP 14414380A JP S5767970 A JPS5767970 A JP S5767970A
Authority
JP
Japan
Prior art keywords
temperature
copying
fixing part
power source
mpv
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
JP55144143A
Other languages
Japanese (ja)
Inventor
Masao Hosaka
Takeshi Ugai
Toshiyuki Kikuchi
Nachio Seko
Shozo Miyawaki
Setsuo Soga
Takashi Yano
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 JP55144143A priority Critical patent/JPS5767970A/en
Publication of JPS5767970A publication Critical patent/JPS5767970A/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

Abstract

PURPOSE:To assure the quality of a copied picture even when the power source voltage is fluctuant, by correcting the copying speed according to the change of the presumed electrode position temperature corresponding to the temperature of a fixing part, the fluctuation of the power source, the number of copying sheets, etc. CONSTITUTION:A solid-state relay SSR consisting of a switch SW1, a triac TRC2, etc. is controlled via a microcomputer MPV and in accordance with the temperature of a fixing part and due to a thermistor, etc., a half-cycle period of an AC power source which is formed by the zero cross detection, the power souce voltage produced by the peack holding, etc. Then the pulse width of supplied power, etc. is controlled, and the temperature of the fixing part is set at a prescribed level. When the copying is started, the change of the fixing temperature is predictively decided by the computer MPV and in accordance with the detected value of the power source voltage, the detected value of temperature of the fixing part, the copying sheets, etc. Based on this predictive value, the computer MPV designates the copying speed. In such consitution, the picture quality of picture is assured even when the power supply voltage is fluctuant.
JP55144143A 1980-10-14 1980-10-14 Controller of copying machine Pending JPS5767970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55144143A JPS5767970A (en) 1980-10-14 1980-10-14 Controller of copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55144143A JPS5767970A (en) 1980-10-14 1980-10-14 Controller of copying machine

Publications (1)

Publication Number Publication Date
JPS5767970A true JPS5767970A (en) 1982-04-24

Family

ID=15355217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55144143A Pending JPS5767970A (en) 1980-10-14 1980-10-14 Controller of copying machine

Country Status (1)

Country Link
JP (1) JPS5767970A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60121480A (en) * 1983-12-05 1985-06-28 Sharp Corp Heat fixing device
JPS60220365A (en) * 1984-04-17 1985-11-05 Canon Inc Recorder
JPS62150363A (en) * 1985-12-25 1987-07-04 Alps Electric Co Ltd Printer
JPS62269161A (en) * 1986-05-16 1987-11-21 Sharp Corp Controller for copying machine using synchronous motor
JPS62288876A (en) * 1986-06-09 1987-12-15 Canon Inc Fixing device for picture forming device
EP0370520A2 (en) * 1988-11-25 1990-05-30 Canon Kabushiki Kaisha An image fixing apparatus
JPH0422758U (en) * 1990-06-14 1992-02-25
US6407366B2 (en) * 2000-03-07 2002-06-18 Canon Kabushiki Kaisha Image heating apparatus having a plurality of heat generating elements
US8849140B2 (en) 2010-03-16 2014-09-30 Ricoh Company, Ltd. Image forming apparatus including feed permission control that depends on heating power of the fusing apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60121480A (en) * 1983-12-05 1985-06-28 Sharp Corp Heat fixing device
JPS60220365A (en) * 1984-04-17 1985-11-05 Canon Inc Recorder
JPS62150363A (en) * 1985-12-25 1987-07-04 Alps Electric Co Ltd Printer
JPS62269161A (en) * 1986-05-16 1987-11-21 Sharp Corp Controller for copying machine using synchronous motor
JPS62288876A (en) * 1986-06-09 1987-12-15 Canon Inc Fixing device for picture forming device
EP0370520A2 (en) * 1988-11-25 1990-05-30 Canon Kabushiki Kaisha An image fixing apparatus
US5225874A (en) * 1988-11-25 1993-07-06 Canon Kabushiki Kaisha Image fixing apparatus having a pulsewisely energized heater
JPH0422758U (en) * 1990-06-14 1992-02-25
US6407366B2 (en) * 2000-03-07 2002-06-18 Canon Kabushiki Kaisha Image heating apparatus having a plurality of heat generating elements
US8849140B2 (en) 2010-03-16 2014-09-30 Ricoh Company, Ltd. Image forming apparatus including feed permission control that depends on heating power of the fusing apparatus

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