Image forming apparatus
US10509357B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2019 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | May 21, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/0005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
At the time of an end of an image forming job (YES of S1), a controller causes a blade and a developing roller to be separated from a photosensitive drum (S2). At that time, the controller controls separation timing of the belt and the developing roller so that the developing roller is separated from the photosensitive drum before a surface position of the photosensitive drum contacted to the developing roller at a contact position at the time of a start of separation of the blade from the photosensitive drum reaches a developing position with the separation of the blade. According to this, even when a liquid accumulation reaches the developing position depending on the separation of the blade, the developing roller has already been separated from the photosensitive drum before the liquid accumulation reaches the developing position and therefore, the liquid accumulation is not collected by the developing roller. When the liquid accumulation is not collected by the developing roller, color mixture due to the liquid accumulation does not occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.