Image forming apparatus
US7333758B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2006 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Jan 18, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0193
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus capable of changing over between black printing and color printing with an intermediate transfer belt being brought into contact with and separated from photoconductors by means of a black transfer member and a three-color-integrated color transfer member. The image forming apparatus has a registration mark former for forming registration marks on the intermediate transfer belt, a registration sensor for reading the registration marks, and a controller for controlling the registration mark former based on the registration marks read by the registration sensor, so as to adjust registration. The controller has an adjustment mode to adjust registration between black and color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.