JPS5448554A - Fluorescent lamp control system of electrophotographic copiers - Google Patents

Fluorescent lamp control system of electrophotographic copiers

Info

Publication number
JPS5448554A
JPS5448554A JP9946577A JP9946577A JPS5448554A JP S5448554 A JPS5448554 A JP S5448554A JP 9946577 A JP9946577 A JP 9946577A JP 9946577 A JP9946577 A JP 9946577A JP S5448554 A JPS5448554 A JP S5448554A
Authority
JP
Japan
Prior art keywords
time
fluorescent lamp
warm
copying
lighting
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
JP9946577A
Other languages
Japanese (ja)
Other versions
JPS5719792B2 (en
Inventor
Noriyoshi Tarumi
Kenichi Matsumoto
Shunichi Abe
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP9946577A priority Critical patent/JPS5448554A/en
Publication of JPS5448554A publication Critical patent/JPS5448554A/en
Publication of JPS5719792B2 publication Critical patent/JPS5719792B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Or Security For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

PURPOSE:To eliminate fogs by obtaining light output necessary for image exposure from a flurescent lamp and achieve the improvement in copying efficiency by performing perliminary lighting of the fluorescent lamp and detecting and controlling the warm-up time of the fixing device. CONSTITUTION:When a main switch S is turned ON, warming-up of the heater H of a fixing device 1 is started and at the same time power is also supplied to the filament of a fluorescent lamp 5. After lapse of set time, the fluorescent lamp 5 is lighted. After starting of the lighting, a switch S closes to send the signal of warm- up completion to a control circuit 3. Next, the warm-up require time is compared with the preset time in the control circuit 3 and when it is shorter, the fluorescent lamp is put out and when it is longer, it is put out after its lihgting is further continued for a speciried time. Because of this, the tube wall temperature of the flourescent lamp becomes relatively high and therefore even if copying is not done immediate after completion of preliminary lighting, the tube wall does not cool down to 20 deg. or under, hence picture quality free from fogs may be obtained even if copying is done any time after this.
JP9946577A 1977-08-22 1977-08-22 Fluorescent lamp control system of electrophotographic copiers Granted JPS5448554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9946577A JPS5448554A (en) 1977-08-22 1977-08-22 Fluorescent lamp control system of electrophotographic copiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9946577A JPS5448554A (en) 1977-08-22 1977-08-22 Fluorescent lamp control system of electrophotographic copiers

Publications (2)

Publication Number Publication Date
JPS5448554A true JPS5448554A (en) 1979-04-17
JPS5719792B2 JPS5719792B2 (en) 1982-04-24

Family

ID=14248051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9946577A Granted JPS5448554A (en) 1977-08-22 1977-08-22 Fluorescent lamp control system of electrophotographic copiers

Country Status (1)

Country Link
JP (1) JPS5448554A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60136728A (en) * 1983-12-26 1985-07-20 Toshiba Corp Image forming device
JPS634259A (en) * 1986-06-24 1988-01-09 Canon Inc Copying device
US4853739A (en) * 1987-06-25 1989-08-01 Minolta Camera Kabushiki Kaisha Illuminating device for image exposure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0330085U (en) * 1989-07-31 1991-03-25

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60136728A (en) * 1983-12-26 1985-07-20 Toshiba Corp Image forming device
JPS634259A (en) * 1986-06-24 1988-01-09 Canon Inc Copying device
US4853739A (en) * 1987-06-25 1989-08-01 Minolta Camera Kabushiki Kaisha Illuminating device for image exposure

Also Published As

Publication number Publication date
JPS5719792B2 (en) 1982-04-24

Similar Documents

Publication Publication Date Title
JPS5681824A (en) Data imprinting device of camera
JPS5448554A (en) Fluorescent lamp control system of electrophotographic copiers
JPS5638068A (en) Fixing unit of copier
JPS54153038A (en) Automatic exposure control device of electrophoto graphic copier
DE3069366D1 (en) Light source device for an endoscope
JPS57207263A (en) Controller for copying machine
JPS61140933A (en) Method for controlling lamp for illumination of original
US3567344A (en) Illuminating device for original of an electrophotographic duplicating machine
JPS5214422A (en) Automatic control method of exposure for the electrophotographic copying machine
SU862110A1 (en) Assembly for picture fixation in electrographic machine
US5206688A (en) Light control device for an image forming apparatus
JP2507313B2 (en) An electronic flash device having an auxiliary lighting device or a photographing device incorporating the electronic flash device
JPS58168044A (en) Original reading device
JPS5636936A (en) Light source device for endoscope
JPS58105225A (en) Controlling method of copying machine
JP2586493B2 (en) Document illumination device
JPS642077A (en) Exposure illuminator for copying machine
JP2699477B2 (en) Image reading device
JP2603645B2 (en) Light intensity control circuit for fluorescent light for document surface illumination
US3497300A (en) Photocopy heater circuit
JPS626275A (en) Exposing device
JPS61235829A (en) Lighting device
JPS63253371A (en) Copying machine
JPS6250822A (en) Image forming device
JPS61217033A (en) Image forming device