Image forming apparatus including a rotary member and a detecting member which detects light from the surface of the rotary member
US11231675B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 2020 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Oct 5, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1623
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus which includes a rotary member and a detecting member configured to detect light from a surface of the rotary member. A controller is configured to acquire information relating to a position on the rotary member in a moving direction thereof based on a detection result obtained by the detecting member. The surface of the rotary member has, in a part of the rotary member in its moving direction, an area with a different detection result obtained by the detecting member based on a shape of the surface of the rotary member. The controller acquires the information relating to the position on the rotary member in the moving direction based on the detection result of detecting light from the surface of the rotary member by the detecting member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.