| 摘要 |
<p>PURPOSE:To heighten the reliability of a both-sided copying function by once accomodating a copy sheet having a copy image formed on one side thereof in a refeed tray, and refeeding the sheet by a pair of rollers used for accomodating a sheet in the tray and also for refeeding the copy sheet. CONSTITUTION:A transport roller 22 and a separation belt 32 are driven in direction of an arrow (a) for accomodating a copy sheet P in a refeed tray 8. When the movable forward end portion 8b of the refeed tray 8 is switched to an imaginary line position, one-sided copied sheets P are stacked and accomodated in the refeed tray 8. Subsequently, according to a copy start signal for the second surface, the transport roller 22 is driven in direction of an arrow (b) by a motor 27, and at the same time, a pick-up roller 46 is driven in the refeed direction (b) to work upon the lowermost copy sheet P in the refeed tray 8, so that the sheet is drawn out from the tray 8 to be fed between the roller 22 and the belt 32. Thereafter, the sheet is fed into a refeed transport path 18 by transport action of the roller 22. At this time, the belt 32 is adapted to keep copy sheets P other than the lowermost sheet from accompanying.</p> |
