Method and apparatus for cleaning liquid electrophotographic printer squeegee rollers
AssigneeSamsung Electronics Co., Ltd.
InventorWoo-yong Park
Life of this patent
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Abstract
A squeegee roller cleaning apparatus of a liquid electrophotographic printer includes a squeegee roller and a cleaning roller. The squeegee roller is mounted to be operative for movement in order to selectively contact a photoreceptor web circulating along an endless path. The cleaning roller includes at least one blade member that is spirally twisted on the outer circumference of a rotary rod so as to contact the squeegee roller by the movement of the squeegee roller to remove a hold-up volume of developer. Thus, contamination of the photoreceptor web and the transfer roller can be reduced so that the quality of the printed image can be improved.
Claims14
A squeegee roller cleaning apparatus of a liquid electrophotographic printer, comprising:
- a squeegee roller mounted to be operative for movement in order to selectively contact a photoreceptor web circulating along an endless path;
- and
- a cleaning roller including at least one blade member which is spirally twisted on an outer circumference of a rotary rod so as to contact said squeegee roller by the movement of said squeegee roller.
A method of removing a hold-up volume of developer from a squeegee roller of a liquid electrophotographic printer, wherein said liquid electrophotographic printer includes a photoreceptor web circulating along an endless path, a movable squeegee roller that selectively contacts said photoreceptor web, a cleaning roller that includes at least one blade member spirally twisted on the outer circumference of a rotary rod so as to contact said squeegee roller, and a movable squeegee blade that selectively contacts said squeegee roller, the method comprising:
- displacing said squeegee roller from said photoreceptor web;
- contacting said squeegee roller with said squeegee blade and rotating said squeegee roller against said squeegee blade;
- halting the rotation of said squeegee roller and displacing said squeegee blade from said squeegee roller, thereby leaving a hold-up volume of developer remaining on said squeegee roller;
- displacing said squeegee roller, whereby said at least one blade member of said cleaning roller contacts said squeegee roller;
- and
- rotating said squeegee roller so that said at least one blade member removes the hold-up volume of developer remaining on said squeegee roller.
Dependencies are inferred from the claim text.