Cooling unit and method of cooling an electrophotographic apparatus
US6324361A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2000 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | May 3, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/206
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The ratio detecting unit detects, upon stoppage of printing, a fixing control ratio K which represents a ratio of time during which the fixing unit was controlled to the printing temperature in a certain period of time in the past. The predicting unit predicts a fan driving time Tf after stoppage of printing in response to the thus detected fixing control ratio K. The fan control unit rotation-controls the cooling fan 42 during printing, keeps the fan controlling status for printing for a fan driving time Tf upon stoppage of printing, and upon lapse of the fan driving time Tf, fan stoppage or high-speed rotation is switched over to low-speed rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.