Laser print cartridge with removable paper cleaning assembly
US9317006B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 2013 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Nov 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved laser print cartridge having a reduced defect rate. The improved laser print cartridge includes a printing assembly, a primary cleaning assembly, and a paper cleaning assembly. The printing assembly includes a drum, a primary charge roller, and a toner roller for applying toner to printer paper. The primary cleaning assembly includes a wiper blade for removing large debris particles from the drum into a large particle receiving volume. The paper cleaning assembly provides a wicking flange for removing smaller particles of debris not removed by the wiper blade. As such, the wicking flange is positioned in between the wiper blade and the primary charge roller and is mounted to the wiper blade. A cleaning portion of the wicking flange is pressed against the drum and either absorbs the debris or wipes the debris into a small particle receiving volume delineated by the drum, wicking flange, and wiper blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.