Image forming apparatus and control method for the same
US9383677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2013 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Oct 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/065
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus and a control method for the same, which ensure acquisition of a high-quality image by controlling physical-states of toner on a developer roller based on sensed variation in states of internal components of a developer cartridge, and which enable sensing and determination of the lifespan of the developer cartridge, is provided. The control method for the image forming apparatus includes applying a current detection bias to a developer roller blade of a developer cartridge, detecting the magnitude of current of the developer roller blade when the current detection bias is applied to the developer roller blade, and variably controlling a developer cartridge bias to be applied to the developer cartridge for image formation based on the detected magnitude of current of the developer roller blade, so as to allow a target magnitude of constant current to flow through the developer roller blade during image formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.