Image forming apparatus
US5198852A · kind A · utility
6Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1992 |
| Grant date | Mar 30, 1993 |
| Priority date | — |
| Expiry date | Feb 25, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus having a pattern forming device for forming on a photosensitive member, a plurality of patterned images having toner attached thereto; a light emitting device for irradiating light over the patterned images on the photosensitive member; and a photosensor device for detecting toner density on the basis of quantity of the light scattered by the patterned images; wherein an incident plane of the light emitting device relative to the photosensitive member is parallel to a cutting direction of a tubular stock of the photosensitive member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.