JPS5598760A - Cooling device in copying machine - Google Patents
Cooling device in copying machineInfo
- 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
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.
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)
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 |
-
1979
- 1979-01-23 JP JP733679A patent/JPS5598760A/en active Pending
Cited By (3)
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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