Developing frame and process cartridge
US7127192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2004 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Dec 24, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0817
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing frame which can improve a sealing property for developer at the end portion of a developing roller. The developing frame has a first frame member having a developer supplying opening provided to supply a developer from a developer containing portion containing the developer to a developing area, a second frame member joined to the first frame member by molten resin, an attachment portion, a seal member for preventing the developer from leaking from the lengthwise end portion of the developing roller being attached to the attachment portion, and a resin reservoir depressed from the joint surface of the first frame member and the second frame member toward the attachment portion, and in which the molten resin is stored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.