Patent · US Expired

Toner applicator and removal apparatus

US4197811A · kind A · utility

2Cited by
9References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 30, 1978
Grant dateApr 15, 1980
Priority date
Expiry dateJan 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.