Image formation device and agent supplying device including absorber conveying by negative pressure
US6826381B2 · kind B2 · utility
68Cited by
12References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0869
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner container contains a powdery toner. A powder pump conveys the toner in the toner container to a substantially closed, certain location using negative pressure. A toner conveyance tube conveys the toner from the container to the powder pump. An air pump supplies air into the toner container. An on/off valve opens and closes the toner conveyance tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.