Modular reader/printer developer apparatus
US4494859A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1983 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Apr 6, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/223
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A reader/printer apparatus includes a main frame having an optical system for exposure of photocopy paper with the image on a film carrier in combination with an integrated modular developing station which is adapted to receive any one of a plurality of different developer modules. Each module is a self-contained plug-in type structure and includes a dry silver paper developer module and an electrostatic developer module are provided. Each module includes an infeed unit and a discharge unit for passing the paper from the exposure unit through the developer module. The dry silver module includes a suitable transfer roll and mating heating bars for developing the exposed dry silver paper. The electrostatic module includes a magnetic toner brush assembly to deposit toner particles in the image area. Each module includes an essentially identical rectangular frame structure corresponding to a rectangular developer chamber having a suitable guide means. Either of the modules is directly mounted into the developer chamber, with the infeed unit aligned with the discharge unit from the exposure station and a discharge unit aligned with an exit opening. A corona charging module is releasably…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.