JPH0210554U - - Google Patents

Info

Publication number
JPH0210554U
JPH0210554U JP8856988U JP8856988U JPH0210554U JP H0210554 U JPH0210554 U JP H0210554U JP 8856988 U JP8856988 U JP 8856988U JP 8856988 U JP8856988 U JP 8856988U JP H0210554 U JPH0210554 U JP H0210554U
Authority
JP
Japan
Prior art keywords
heaters
predetermined number
heat source
fixing device
turned
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.)
Granted
Application number
JP8856988U
Other languages
Japanese (ja)
Other versions
JPH0750764Y2 (en
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 filed Critical
Priority to JP1988088569U priority Critical patent/JPH0750764Y2/en
Publication of JPH0210554U publication Critical patent/JPH0210554U/ja
Application granted granted Critical
Publication of JPH0750764Y2 publication Critical patent/JPH0750764Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Fixing For Electrophotography (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案の電子写真用定着装置の一例
を示す断面略図であり、第２図は、第１図の定着
装置を駆動するための信号回路図である。 １……電子写真感光体、５，６，７……赤外線
ヒーター、８……予備赤外線ヒーター、９，１０
，１１……点灯検知センサー、９′，１０′，１
１′……点灯検知信号源、１２……赤外線ヒータ
ーの電源ＯＮ信号源、１３，１５……ＡＮＤ回路
、１４……ＮＡＮＤ回路、１６……予備赤外線ヒ
ーター点灯回路。 FIG. 1 is a schematic cross-sectional view showing an example of an electrophotographic fixing device of the present invention, and FIG. 2 is a signal circuit diagram for driving the fixing device of FIG. 1. 1... Electrophotographic photoreceptor, 5, 6, 7... Infrared heater, 8... Preliminary infrared heater, 9, 10
, 11...Lighting detection sensor, 9', 10', 1
1'... Lighting detection signal source, 12... Infrared heater power ON signal source, 13, 15... AND circuit, 14... NAND circuit, 16... Preliminary infrared heater lighting circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 所定数のヒーターを備えた電子写真用定着装置
において、定着時に熱源となる上記所定数のヒー
ターとは別に予備のヒーターを有し、上記所定数
のヒーターのいずれかが切れると同時に上記予備
のヒーターが熱源となるようにしたことを特徴と
する電子写真用定着装置。 In an electrophotographic fixing device equipped with a predetermined number of heaters, a spare heater is provided in addition to the predetermined number of heaters that serve as a heat source during fixing, and when one of the predetermined number of heaters is turned off, the spare heater is turned off at the same time. A fixing device for electrophotography, characterized in that a heat source is used as a heat source.
JP1988088569U 1988-07-04 1988-07-04 Electrophotographic fixing device Expired - Lifetime JPH0750764Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988088569U JPH0750764Y2 (en) 1988-07-04 1988-07-04 Electrophotographic fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988088569U JPH0750764Y2 (en) 1988-07-04 1988-07-04 Electrophotographic fixing device

Publications (2)

Publication Number Publication Date
JPH0210554U true JPH0210554U (en) 1990-01-23
JPH0750764Y2 JPH0750764Y2 (en) 1995-11-15

Family

ID=31313128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988088569U Expired - Lifetime JPH0750764Y2 (en) 1988-07-04 1988-07-04 Electrophotographic fixing device

Country Status (1)

Country Link
JP (1) JPH0750764Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6290715A (en) * 1985-10-16 1987-04-25 Sharp Corp Heater
JPS63254481A (en) * 1987-04-13 1988-10-21 Nec Corp Flash type fixing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6290715A (en) * 1985-10-16 1987-04-25 Sharp Corp Heater
JPS63254481A (en) * 1987-04-13 1988-10-21 Nec Corp Flash type fixing device

Also Published As

Publication number Publication date
JPH0750764Y2 (en) 1995-11-15

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