Developing cartridge attachable to drum cartridge and having electrical contact surface electrically connected to developing memory
US11333996B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2021 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Mar 31, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1885
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing cartridge attachable to a drum cartridge includes: a casing configured to accommodate developing agent therein; a developing roller rotatable about a developing roller axis extending in the first direction; a developing memory; and an electrical contact surface. The developing roller is positioned at one end of the casing in a second direction crossing the first direction. The electrical contact surface positioned at one end in the first direction of the casing and electrically connected to the developing memory. In a state where the developing cartridge is attached to the drum cartridge, the electrical contact surface of the developing cartridge is positioned between the developing roller and an electrical contact surface of the drum cartridge in the second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.