Image forming apparatus
US10126689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2017 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | May 24, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0161
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Prediction accuracy of a color misregistration amount in an image formation executed in an image forming apparatus is improved. The image forming apparatus comprises an optical box storing an optical system for irradiating a laser beam from a laser source to a photosensitive drum, a scanner temperature sensor provided near the optical box, and an environmental temperature sensor for detecting a surrounding temperature of the image forming apparatus, and a control section. When image formation is executed, the control section obtains a temperature Tscn detected by the scanner temperature sensor and a temperature Tenv detected by the environmental temperature sensor and calculates a prediction value of a position misregistration amount to the photoreceptor of the laser beam using the difference between Tscn and Tenv.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.