| 摘要 |
PURPOSE:To facilitate positioning and to reduce the labor cost of assembly by fixing a drive system composed of a driving member of a moving body and the driving member of a photosensitive body and a transmission mechanism to a fixing plate in one body, and bringing one side wall of the fixing plate into contact with the side wall of the machine frame arranged at righ angles to the shaft of the photosensitive body to fix it directly. CONSTITUTION:The drive system unit 2 is composed of a pair of fixing plates 11, 12 arranged in parallel, and a driving system for driving a photosensitive body 1 and an original placing platen 3 in synchronism. The plate 11 located on the side 6 of the machine frame is provided with the round opening 11c into which the shaft 1a of the photosensitive body 1 can be inserted, at the position corresponding to the body 1, and a pin 11b fittable into the pin hole 52b of an optical system unit 4 is formed above the opening 11c, and further above the pin 11b, at the upper end face, a long circular notch 11a engageable with the protruding pin 52a is formed to permit the unit 4 to be positioned. |
