JPS5699370A - Method of controlling temperature to heating roll in powder toner image fixing device - Google Patents

Method of controlling temperature to heating roll in powder toner image fixing device

Info

Publication number
JPS5699370A
JPS5699370A JP65480A JP65480A JPS5699370A JP S5699370 A JPS5699370 A JP S5699370A JP 65480 A JP65480 A JP 65480A JP 65480 A JP65480 A JP 65480A JP S5699370 A JPS5699370 A JP S5699370A
Authority
JP
Japan
Prior art keywords
roll
warming
temp
heater
heating
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
JP65480A
Other languages
Japanese (ja)
Inventor
Setsuo Soga
Ichiro Fukushima
Yasuo Asahina
Toshiyuki Kikuchi
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 JP65480A priority Critical patent/JPS5699370A/en
Publication of JPS5699370A publication Critical patent/JPS5699370A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Temperature (AREA)
  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE: To prevent over-heating of a heating roll by detecting the power supply time to an infrared ray heater at the warming up of the roll thereby carrying out peripheral temp. controlling.
CONSTITUTION: A heating roll 1 provided with an inrefrared ray heater 11 in a hollow metal cylinder, and a pressure roll 2 press-contacting the roll 1 over the lengthwise direction in parallel with the roll 1 are provided, and while a recording sheet S having powder toner images IT is being press-grasped and conveyed by the rolls 1 and 2, the toner images are fixed onto the sheet. The wall thickness of the cylinder of the roll 1 is made as thin as possible, the warming-up time of the roll 1 by the heater 11 is kept within one minute, the power supply time to the heater 11 is detected at the warming-up and the rise of the peripheral surface temp. of the roll is controlled, and after the warming-up, the peripheral temp. is controlled based on the temp. detected by a thermistor 3 contacting the roll 1.
COPYRIGHT: (C)1981,JPO&Japio
JP65480A 1980-01-08 1980-01-08 Method of controlling temperature to heating roll in powder toner image fixing device Pending JPS5699370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP65480A JPS5699370A (en) 1980-01-08 1980-01-08 Method of controlling temperature to heating roll in powder toner image fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP65480A JPS5699370A (en) 1980-01-08 1980-01-08 Method of controlling temperature to heating roll in powder toner image fixing device

Publications (1)

Publication Number Publication Date
JPS5699370A true JPS5699370A (en) 1981-08-10

Family

ID=11479695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP65480A Pending JPS5699370A (en) 1980-01-08 1980-01-08 Method of controlling temperature to heating roll in powder toner image fixing device

Country Status (1)

Country Link
JP (1) JPS5699370A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58103071U (en) * 1981-12-28 1983-07-13 京セラミタ株式会社 Copy machine heat fixing device
JPS60169664U (en) * 1984-07-30 1985-11-11 京セラミタ株式会社 Copy machine heat fixing device
JPS61110182A (en) * 1984-11-02 1986-05-28 Sanyo Electric Co Ltd Toner fixing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58103071U (en) * 1981-12-28 1983-07-13 京セラミタ株式会社 Copy machine heat fixing device
JPS60169664U (en) * 1984-07-30 1985-11-11 京セラミタ株式会社 Copy machine heat fixing device
JPH0328444Y2 (en) * 1984-07-30 1991-06-19
JPS61110182A (en) * 1984-11-02 1986-05-28 Sanyo Electric Co Ltd Toner fixing device

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