Image forming apparatus using measured data to adjust the operation level
US5173734A · kind A · utility
8Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1991 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Mar 14, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0291
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a corona charger, a surface electrometer and a memory provided around a photoreceptor drum. When power supply of the image forming apparatus is turned on, an image adjusting process is carried out. In the image adjusting process, level of charging the corona charger is changed stepwise, the surface potential on the photoreceptor drum at the time is measured by the surface electrometer and the result of measurement is stored in the memory. When image forming process is carried out subsequently, the charge level of the corona charger is set based on the data stored in the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.