Image forming apparatus, method of controlling same, and program
US7926956B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Jun 14, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed herein is an image forming apparatus that emits a beam corresponding to an image onto an image-projected object to allow the image to be formed thereon. The apparatus includes: a lamp; a lamp power supply; a lens; a brightness sensor that measures a lamp brightness; a memory that stores, as a reference brightness value, the lamp brightness measured at a first time when brightness of the beam on the image-projected object has reached a target value; and a control circuit. At a second time, the control circuit performs first control of generating or updating and storing correspondence information. At a third time, the control circuit performs second control of identifying a level of an output power of the lamp power supply corresponding to the reference brightness value, and driving the lamp power supply with the identified level of the output power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.