Image forming apparatus
US4695151A · kind A · utility
20Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1985 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Oct 17, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/206
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus, an original placed on an exposure table is illuminated for exposure to form an image. The image forming apparatus comprises an optical unit including a light source for exposing the original and a ventilating unit for ventilating the optical unit. The ventilating unit is provided with a fan, a first duct for guiding and discharging air from the fan to the outside of the apparatus, and a second duct for guiding part of the air from the fan so as to drive it back into the optical unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.