| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure the position precision of a resin frame and a pair of sheet metal frames in an image forming apparatus where one sheet metal frame supporting a photoreceptor is fixed on one surface of the resin frame and the other supporting a driving means for driving the photoreceptor is fixed to the other surface of the resin frame. <P>SOLUTION: A reference shaft 241 stood on a drum driving sheet metal 200 is inserted into a hole 341 of a resin frame 300 and a hole 141 of a sheet metal frame 100, and a reference shaft 242 is inserted into a hole of the resin frame 300 and a hole 142 of the sheet metal frame 100, whereby the drum driving sheet metal 200, the resin frame 300, and the sheet metal frame 100 are positioned to each other. By this positioning, a coupling on the output side attached to the drum driving sheet metal 200 faces a coupling of a process cartridge loaded to the sheet metal frame 100. <P>COPYRIGHT: (C)2010,JPO&INPIT |
