Electrophotographic printer having an image memory, a horizontal scanning fringe correction exposure determining section, a vertical scanning fringe correction exposure determining section, and a switch
AssigneesHitachi Koki Co., Ltd., Hitachi, Ltd.
InventorsSeiji Maruo, Shinichi Akatsu, Hiroyuki Mabuchi, Teruaki Mitsuya, Shinya Kobayashi
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Abstract
An image memory for storing input image data by plural lines, a horizontal scanning fringe correction exposure determining section for determining a fringe between close vertical lines in a horizontal scanning direction in the image data, a vertical scanning fringe correction exposure determining section for determining a fringe at the lower end of an image in a vertical scanning direction and a switch for selecting at least three laser drivers are provided.
Claims5
An electrophotographic apparatus for a tri-level developing method of developing at least two colors of toner by one exposure, the electrophotographic apparatus comprising:
- an image memory for storing a plurality of lines of image data;
- a horizontal scanning fringe correction exposure determining section for determining a fringe between close vertical lines in a horizontal scanning direction in the image data;
- a vertical scanning fringe correction exposure determining section for determining a fringe at a lower end of an image in a vertical scanning direction;
- and
- a switch, for selecting at least three laser drivers, operatively coupled to at least one of the image memory, the horizontal scanning fringe correction exposure determining section, and the vertical scanning fringe correction exposure determining section.
Dependencies are inferred from the claim text.