Method and apparatus for image forming capable of effectively eliminating color displacements
US7215907B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2004 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Mar 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0158
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus including at least one image bearing member configured to bear a toner image on a surface thereof, and a transferring member arranged close to or in contact with the at least one image bearing member and configured to rotate in substantially synchronism with the at least one image bearing member to transfer the toner image born on the at least one image bearing member onto a recording medium. The apparatus further includes at least one first motor rotating the at least one image bearing member, a second motor rotating the transferring member, and a control mechanism configured to control a rotation number of at least one of the at least one first motor and the second motor during at least one of rise and fall time periods with a command clock signal and a feedback signal in accordance with a predetermined velocity curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.