Developer accommodating unit with light guide member for detecting remaining toner amount
US9063501B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2013 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Jul 12, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0894
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer accommodating unit includes a developer accommodating unit formed by a developer accommodating frame and includes an integrally formed light guide member. The light guide member is mounted through the developer accommodating frame in a state in which an incident portion and an emergent portion are exposed through an incident side opening and an emergent side opening, respectively, and is connected with the developer accommodating frame in a sealed state so that an outside and inside of the developer accommodating chamber are prevented from communicating with each other via the incident side opening and the emergent side opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.