Light beam scanning apparatus capable of shortening the standby time and image forming apparatus capable of shortening the standby time
US7158163B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 22, 2004 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Jan 16, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/471
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A light beam scanning apparatus according to an embodiment of this invention includes a reflection unit for reflecting a light beam, a rotation unit for rotating the reflection unit, a rotation control unit for controlling rotation of the rotation unit, a rotational speed detection unit for detecting a rotational speed of the rotation unit, a light amount control unit for, before the rotational speed detection unit detects that the rotational speed has reached a predetermined rotational speed, controlling light emission of the light beam and controlling the light amount of the light beam to a predetermined value, and a light emission control unit for, after the rotational speed detection unit detects that the rotational speed has reached the predetermined rotational speed, controlling a light emission timing of the light beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.