| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image formation apparatus capable of easily detecting whether a photoreceptor drum is a new or old one and surely performing initialization of a print history. <P>SOLUTION: An image formation apparatus includes a photoreceptor drum fitted to an apparatus body detachably and having a flange gear at its end, a transmission gear meshing with the flange gear of the photoreceptor drum, a screw member coupled to the transmission gear and having a groove part, a movement member movable along the groove part according to the rotation of the photoreceptor drum, and a detection sensor for detecting whether the movement member exists. <P>COPYRIGHT: (C)2012,JPO&INPIT |
