Dual electrophotographic color printing with ROS and dual layer photoreceptor

A full color xerographic printing system, either double pass (Fig. 1) or single pass (Fig. 6), with a single polygon, single optical system Raster Output Scanning (ROS) system (16) has a dual wavelength laser diode source (18) for the ROS which images the dual beams at a single station (B) as closel...

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Bibliographic Details
Main Authors KOVACS, GREGORY J, CONNELL, G.A. NEVILLE
Format Patent
LanguageEnglish
French
German
Published 13.07.1994
Edition5
Subjects
CINEMATOGRAPHY
CORRECTION OF TYPOGRAPHICAL ERRORS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
MAGNETOGRAPHY
PERFORMING OPERATIONS
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:A full color xerographic printing system, either double pass (Fig. 1) or single pass (Fig. 6), with a single polygon, single optical system Raster Output Scanning (ROS) system (16) has a dual wavelength laser diode source (18) for the ROS which images the dual beams at a single station (B) as closely spaced spots or at two stations (BB,II) as closely spaced spots on a dual layer photoreceptor (10) with each photoreceptor layer sensitive to or accessible by only one of the two wavelengths. By exposing the photoreceptor to various combinations of the beams and depositing different color toners on the photoreceptor, a full color developed image can be obtained.
Bibliography:Application Number: EP19940300016