Method and apparatus for image forming apparatus capable of accurately detecting toner image patterns
US6334039A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2000 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Jul 7, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0161
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a belt member to convey a sheet-formed medium, a belt supporting device to support the belt member, and a plurality of recording units including rotating image bearing members arranged in a conveying direction of the sheet-formed medium by the belt. The image forming apparatus performs processes of (1) forming a latent image on a surface of each image bearing member, (2) developing each latent image into a toner image with toner, and (3) then transferring each toner image onto the sheet-formed medium carried on the belt. A detection device detects arbitrary toner image patterns formed at the plurality of recording units and then directly transferred onto the belt, for obtaining information about density and placements of images without the toner patterns being deteriorated by contacting following downstream recording units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.