Transfer system for a color printer

Details Transfer system for a color printer Transfer system for a color printer

1990-03-19

1992-01-14

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355 73, 355312, G03G 2100

Patent

active

050815067

ABSTRACT:
An apparatus in which successive toner images are transferred from a photoconductive drum to a sheet at a transfer zone. The sheet is transported by a perforated belt entrained about a stationary sleeve through a recirculating path. The sleeve has a plurality of spaced ports extending in and through the periphery thereof and connected to a vacuum source. In this way, the sheet is vacuum tacked to the belt to move in unison therewith in synchronism with the photoconductive drum. At the transfer zone, the sheet separates the belt and is interposed between the photoconductive member and a corona generator. The corona generator applies an electrostatic charge to the sheet to attract successive toner images thereto. The sheet moves with the belt in a recirculating path so that successive different color toner images are transferred thereto in registration with one another.

REFERENCES:
patent: 4251154 (1981-02-01), Russel
patent: 4294540 (1981-01-01), Thettu
patent: 4537493 (1985-08-01), Russel
patent: 4712906 (1987-12-01), Bothner et al.
patent: 4724458 (1988-02-01), Roy et al.
patent: 4739361 (1988-04-01), Roy et al.
patent: 4740813 (1988-04-01), Roy

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