Toner applicator and removal apparatus
US4197811A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1978 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Jan 30, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/095
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus for applying toner to a tape which has toner-attracting images thereon, including a chamber containing toner, a chamber inlet located below the top of the toner, a chamber outlet above the top of the toner, and a tape guide which is convex along the tape path which leads through the toner to minimize toner pickup on the rear face of the tape. A vacuum is maintained at the top of the chamber to create an inflow of air at the tape outlet, to sweep back loose toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.