Image forming apparatus including drum unit attachable and detachable along drum shaft
US8660461B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2011 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Nov 29, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1609
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a drum unit configured to be attachable to and detachable from the body through inserting the drum shaft into the hollow portion of the photoreceptor drum, a plurality of ribs formed on the drum unit, a guide rail formed in a body, and a plurality of cutouts that is formed in the guide rail is configured to engage with the plurality of ribs when the drum unit is positioned at a regular position. The drum shaft and the guide rail are configured with respect to each other such that a center of the drum shaft is substantially coaxial with a center of the photoreceptor drum when the drum unit slides relative to the body in a state in which the plurality of ribs is placed on the guide rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.