Image forming apparatus
US10001721B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2017 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Aug 7, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/5037
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a control unit configured to change, to a light quantity different from a plurality of reference light quantities, a light quantity per unit area of a surface of an electrical charge retention layer of a photosensitive member when an exposure unit exposes the surface in correspondence with a plurality of gradation levels, based on a plurality of exposure potentials corresponding to the plurality of gradation levels which is acquired by exposing with the exposure unit the surface with each of the plurality of reference light quantities corresponding to the plurality of gradation levels, and measuring with the measurement unit the plurality of exposure potentials of the photosensitive member which is formed by the exposure with the plurality of reference light quantities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.