| 摘要 |
PURPOSE:To stabilize paper refeeding operation by reciprocating a stacking part for the moving direction, insomuch as the edges of sheets of copying paper are trued up, when sheets of various sizes of the copying paper, whose one side is once copied, are stacked there. CONSTITUTION:Each copying paper out of paper feeding cassettes 35-39 in various sizes is transferred with a toner image between a copying electrostatic charger 31 and a sensitizer drum 25 and fixed at a fixer 45, and in the case of duplex copying, it is successively stacked on an inclined intermediate stacking part 57 of a stacking part 5 by way of an ADD/paper discharge selector guide 47 and a paper discharge roller group 53. When the specified number of sheets are stacked, a lifter 59 being set up in the intermediate stacking 57 is reciprocated as long as 5mm or so in the conveying direction, truing up the edges of the sheets of copying paper, and side slippage is arranged properly by a paper arranger 61, while the copying paper is fed to a resist roller 41 of a copying part 3 piece by piece through a pickup roller 63, and copying for the backside is started. Thus, paper refeeding operation is stably performable. |
