Developing device with sealing unit, process cartridge using developing device, and image forming apparatus
US10866536B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2019 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Mar 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes a developer storing unit that stores a developer before use of the developing device, a developer containing unit that contains, when the developing device is used, the developer stored in the developer storing unit such that the developer is capable of being stirred by the developer containing unit, a developer holding unit that is provided in a portion of the developer containing unit and that holds the developer contained in the developer containing unit and moves the developer in a rotation direction, a sealing unit including a sealing tape portion that seals a slit-shaped opening formed in the developer storing unit along a longitudinal direction of the developer storing unit while the sealing tape portion is capable of being pulled out and that seals the slit-shaped opening of the developer storing unit by being removably fixed onto an edge of the opening and an extended tape portion that is folded at an end of the sealing tape portion in a longitudinal direction of the sealing tape portion and that extends along the sealing tape portion in such a manner as to project outward beyond the sealing tape portion, a scraping unit that is disposed at an …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.