Image forming apparatus capable of detecting density of toner image
US6775489B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Aug 10, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0177
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image forming device for forming an image which is capable of forming a toner image for density detection, and a detector for irradiating light to the toner image for density detection and detecting light obtained from the toner image for density detection, in which: the image forming device is controlled based on an output from the detector; the toner image for density detection includes a first toner image and a second toner image having a light reflectance lower than that of the first toner image; and the detector detects the first toner image formed on the second toner image in the case where a density of the first toner image is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.