Cleaning device for an electrostatic photographic copying machine
US4516849A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1983 |
| Grant date | May 14, 1985 |
| Priority date | — |
| Expiry date | Mar 17, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/0029
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A cleaning device for an electrostatic photographic copying machine having a sensitive drum provided with a paper-stripping groove at one side thereof includes an upper blade for stripping residual toner from the sensitive drum, a lower blade for guiding the thus stripped toner from the surface of the sensitive drum toward a toner withdrawing device, and a groove cover covering the paper-stripping groove at least from the upper blade to the lower blade so that the groove cover will be in contact with the lower blade. Residual toner which is stripped from the surface of the sensitive drum is prevented from entering the paper stripping groove by the groove cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.