Developer container, developing cartridge, process cartridge and image forming apparatus
US9164430B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2014 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | May 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0882
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer container includes: a developer chamber, provided with an opening, for accommodating a developer; a rotatable member rotatably supported in the developer chamber; and a sealing member for being removed at the opening by being wound up by the rotatable member, wherein the sealing member is provided in the developer chamber and includes a first end portion connected to the rotatable member and a second end portion sealing the opening. Sealing of the opening is made by bonding the sealing member along an edge of the opening. The developer container includes a first bonding portion provided upstream of the opening and a second bonding portion provided downstream of the opening with respect to an unsealing direction of the sealing member. A peeling-off force for peeling off the sealing member at a predetermined angle is larger at the first bonding portion than at the second bonding portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.