Image forming apparatus and method of color misregistration correction
US8508800B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Jan 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0161
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A length L of the test pattern string is determined so as to satisfy a condition L≦{P−(Q1+Q2)}×V, where a time Q is a total time of a time Q1 for which the test pattern string is transferred from an exposure position of the test pattern string to a sensor and a time Q2 from when the test pattern is detected by the sensor until a color misregistration correction value calculated on the basis of a result of detecting is reflected in image formation; a time P is a time from a timing of starting to write the test pattern string to a timing of starting to write an image in which the correction value should be reflected; and a driving speed of a second image carrier is V.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.