John G Cosby

US Patent:

46232419, Nov 18, 1986

Filed:

Jul 18, 1983

Appl. No.:

6/524099

Inventors:

William R. Buchan - Pepperell MA
Jerome R. Faucher - Nashua NH
John M. Cosby - Nashua NH

Assignee:

Nashua Corporation - Nashua NH

International Classification:

G03G 1510
G03G 1506
G03G 908

US Classification:

355 10

Abstract:

A development apparatus and method positions the development electrode (30), in a liquid development system, in a close, spaced apart relationship to a moving photosensitive surface (12). The development electrode (30) has plural supply conduits (76) and at least one drain conduit (84) for eliminating toner starvation during the development process. The development apparatus and method further employ a pressurized filter element (50) having a cell size larger than the particle size to be trapped for reducing the occurrence of voids on the output copy. The filter (50) is configured to provide, in its sealed housing, input (80) and output (82) manifolds.