Image forming apparatus with toner content detection and image density detection
US7536120B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 2006 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Mar 6, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00063
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a first and second developing devices for developing an electrostatic images with different developers a toner content detecting device for detecting a toner content in the developer in the first developing device, an image density detecting device for detecting an image density of a reference toner image formed using the first and second developing devices, and a controller for operating the apparatus selectively in a first and second modes. An image forming operation is carried out using only the first developing device in the first mode. An image forming operation is carried out using the first and second developing devices and the in the second mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.