Patent ID: 7263310
Filing Date: 2007-08-28
Classification: G03G

Abstract:
1. A housing assembly of an OPC unit to protect an OPC drum, on which an image to be printed on a recording paper is formed in an image forming apparatus, the housing assembly comprising: a main housing having a first portion to enclose at least a half of a photoconductive surface of the OPC drum and a second portion to define a main opening, the first portion having at least one sub-opening extending therethrough; and at least one sub-housing mounted on an opposite side of the first portion of the main housing with respect to the photoconductive surface to correspond to the at least one sub-opening and to communicate with the photoconductive surface of the OPC drum by extending through the at least one sub-opening in the first portion of the main housing, wherein the at least one sub-opening in the first portion of the main housing includes a second sub-opening through which a waste toner is discharged and a fourth sub-opening through which an electrification light guide and an electrification roller assembly are mounted.