| 摘要 |
<p>PURPOSE:To keep contact state constant, even if errors in parts for constituting each section and the assembling precision of the parts are cumulative, in an image forming device allowing a transfer material carrying belt to contact with an image carrier drum at the time of copying an image and taking an interval at the time of the process of jamming, in a four-throw tandem color copying machine. CONSTITUTION:When a belt unit frame supporting the transfer material carrying belt is raised by a lifting lever, the raising of an image carrier drum rotating shaft Y29 and a guiding roller Y31 is suppressed by positioning pins 35-38 planted in the belt unit frame and the contact state on the transfer material carrying belt supported by the belt unit fame with the image carrier drum is made definite, so that the failure in the transfer of the image never occurs.</p> |
