High speed imaging of electrophotographic film by fine beam scan

Details High speed imaging of electrophotographic film by fine beam scan High speed imaging of electrophotographic film by fine beam scan

1982-05-27

1984-08-28

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358285, 358290, 358297, H04M 130

Patent

active

044687079

ABSTRACT:
Half-tone xerography involving high speed charging of a limited region of an electrophotographic member and subsequent high speed discharging as by writing with a fine laser beam upon the limited region of the electrophotographic member, the beam being modulated with recordable intelligence from stored digital data. The member is mounted for rotary and axial movement relative to both charging unit and an axial movement beam directing unit. The member support for the member holds the member in a cylindrical or partially cylindrical form with the photoconductive coating inside. The member as a unit and a charging device and writing device as a unit are mounted for relative axial and rotating movement at high speed to enable charging and imaging of the limited regions in a continuous progressive manner.

REFERENCES:
patent: 3816659 (1974-06-01), Landsman
patent: 3823276 (1974-07-01), Maslowski et al.
patent: 4131916 (1978-12-01), Landsman

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