| 摘要 |
A clean booth has a conveyor area for carrying recording sheets, and a motor drive area for containing motor and mechanical parts that emit much dust. The conveyor area and the motor drive area are covered respectively, and separated by a frame plate. Moreover, fan filter units blow pressurized clean air into the conveyor area to discharge dust while a ventilation system exhausts air in the motor drive area. There is no airflow from motor drive area to the conveyor area because of the difference in air pressure. The recording sheets in the conveyor area are carried by belt conveyors with artificial suede belts. The artificial suede belt is suitable to be used as a conveyer belt because of low dust emission and sufficient flexibility to prevent flaw or pressure marks on the recording sheets.
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