Laser scanning apparatus, image forming apparatus, and method for starting laser scanning apparatus
US6614464B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jun 19, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/122
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A laser scanning apparatus, can suppress the unnecessary emission of a laser beam for a photosensitive drum, can prevent the degradation of the photosensitive drum, and can prolong the life time of a laser, using simple configuration. An image forming apparatus includes this laser scanning apparatus, and a method for starting the laser scanning apparatus. A laser scanning apparatus performing exposure with a laser beam predicts a time elapsing until completion of start on the basis of initial start conditions, shuts off the laser beam during the time predicted, emits a laser beam after the time predicted elapses, and detects completion of start.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.