| 摘要 |
PURPOSE: To clean or replace easily tilting louver pieces which are arranged in the vent opening of a housing, change appropriately a tilting direction of the louver pieces, and further a manufacturing cost is reduced, in an office machine such as a static copying machine. CONSTITUTION: A louver member 18 is formed separately from a housing main body. The louver member is constituted of a frame 28 and a large number of tilting louver pieces 32 which are arranged within the frame by erecting in a row. The louver member is fitted detachably to a vent opening of the housing main body and a tilting direction of the louver pieces can be changed by changing a fitting condition of the louver member. |
