Image forming apparatus and image forming method that corrects test pattern data and image data based on color displacement amount
US8867973B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Oct 15, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0161
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image forming apparatus includes an intermediate transfer body; a generating unit generating test pattern data; a storage unit storing a color displacement amount; a correcting unit correcting the test pattern data and image data based on the color displacement amount currently stored in the storage unit; a forming unit forming a test pattern based on the test pattern data corrected by the correcting unit on the intermediate transfer body at predetermined intervals, and forming an image based on the image data corrected by the correcting unit on the intermediate transfer body; a detecting unit detecting the test pattern formed on the intermediate transfer body; an updating unit determining an amount of change of the color displacement amount from a result of detection by the detecting unit, and updating the color displacement amount stored in the storage unit by using the amount of change of the color displacement amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.