Image forming apparatus and adjusting method
US11366404B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2021 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Apr 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00949
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image bearer, a transfer rotator, an adjuster, and circuitry. The image bearer bears a toner image. The transfer rotator contacts the image bearer to form a transfer nip between the transfer rotator and the image bearer. The transfer rotator transfers the toner image from the image bearer onto a sheet conveyed to the transfer nip. The adjuster adjusts at least one of a relative difference in linear velocity of the transfer rotator to the image bearer at the transfer nip and a relative contact pressure of the transfer rotator to the image bearer at the transfer nip. Based on a difference in image magnification, in a direction of conveyance of the sheet, of toner images transferred onto surfaces of one or more sheets conveyed to the transfer nip, the circuitry causes the adjuster to reduce the difference in image magnification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.