Cartridge, process cartridge, and image forming apparatus
US10935926B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2020 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Feb 5, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1884
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A technique enabling downsizing of an image forming apparatus is provided. A cleaning unit 13 attachable to and detachable from an apparatus main body of an image forming apparatus 100 that forms an image on a recording material 12 is provided, with this cleaning unit 13 including: a photosensitive drum 1; and a cleaning frame body 14 that supports the photosensitive drum 1 and that includes an opening 14c through which laser light 3c for exposing the photosensitive drum 1 can pass, wherein the opening 14c is configured such that a width of the opening 14c in a scanning direction in an irradiation range of the light for exposing the photosensitive drum 1 becomes greater toward a side of the photosensitive drum 1 from a side of a light source of light for exposing the photosensitive drum 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.