JPS5598760A - Cooling device in copying machine - Google Patents

Cooling device in copying machine

Info

Publication number
JPS5598760A
JPS5598760A JP733679A JP733679A JPS5598760A JP S5598760 A JPS5598760 A JP S5598760A JP 733679 A JP733679 A JP 733679A JP 733679 A JP733679 A JP 733679A JP S5598760 A JPS5598760 A JP S5598760A
Authority
JP
Japan
Prior art keywords
light source
cooling
lighting
cooling fan
driving means
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
JP733679A
Other languages
Japanese (ja)
Inventor
Yoshiharu Manabe
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 JP733679A priority Critical patent/JPS5598760A/en
Publication of JPS5598760A publication Critical patent/JPS5598760A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To maintain safety against the temperature rise of a light source and prevent unnecessary cooling by providing a cooling air control part and performing cooling corresponding to the lighting conditions of the light source. CONSTITUTION:A light source dimmer 41 upon receiving of a light source lighting signal operates and lights up a light source 42 by way of a light source driving means 43. At the same time, a cooling fan driving means 45 upon receiving the light source lighting signal operates so that a cooling fan 44 revolves. When the light source lighting signal is inputted to the driving means 45, transistors 54, 55 go ON and a triode AC switch 59 is turned ON by a light emitting diode 56. A motor 60 is then driven by a power source 50 to operate a cooling fan 44. Namely, the cooling fan produces cooling wind only while the light source 42 is lighting. Hence, the unnecessary cooling of the light source 42 does not occur and since the cooling wind is blown to the light source 42 during lighting, the safety against the temperature rise may be maintained.
JP733679A 1979-01-23 1979-01-23 Cooling device in copying machine Pending JPS5598760A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP733679A JPS5598760A (en) 1979-01-23 1979-01-23 Cooling device in copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP733679A JPS5598760A (en) 1979-01-23 1979-01-23 Cooling device in copying machine

Publications (1)

Publication Number Publication Date
JPS5598760A true JPS5598760A (en) 1980-07-28

Family

ID=11663096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP733679A Pending JPS5598760A (en) 1979-01-23 1979-01-23 Cooling device in copying machine

Country Status (1)

Country Link
JP (1) JPS5598760A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01321973A (en) * 1988-06-20 1989-12-27 Hisaka Works Ltd Separating and pulling device for cloth
JPH0353273A (en) * 1989-07-21 1991-03-07 Ricoh Co Ltd Start-up controller of illuminator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01321973A (en) * 1988-06-20 1989-12-27 Hisaka Works Ltd Separating and pulling device for cloth
JPH043464B2 (en) * 1988-06-20 1992-01-23
JPH0353273A (en) * 1989-07-21 1991-03-07 Ricoh Co Ltd Start-up controller of illuminator

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