Image forming apparatus
US8831480B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2012 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Jan 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/0064
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes: a drum; a charger; a developing portion; a transfer portion; a first adjuster; a second adjuster; and a controller for controlling the first and second adjuster. A first voltage is applied to the first adjuster during a period from a time when a rear end of a region in which an electrostatic image corresponding to a final image is to be formed passes through the first adjuster until a time when the rear end passes through the charger. The first voltage is lower in absolute value than a voltage applied to the first adjuster. A second voltage is applied to the second adjuster when a front end of a region of the drum opposing the first adjuster to which the first voltage is applied reaches the second adjuster. The second voltage is higher in absolute value than the voltage applied to the second adjuster.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.