Delivery processing apparatus and image forming apparatus

Sheet feeding or delivering – Feeding – By means to convey sheet

Reexamination Certificate

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Details

C271S258010, C270S058090

Reexamination Certificate

active

07431291

ABSTRACT:
The present invention relates to a delivery processing apparatus comprising an alignment stage, an aligning means having an alignment member operable to align a sheet on the alignment stage and to escape to a home position during a non-alignment period, a conveying means for conveying the sheet on the alignment stage, a sheet processing means for performing a prescribed processing to the sheet on the alignment stage, a delivery portion for stacking the sheets and a stacking amount detecting means having a detection member selectively moving to a detection position and a non-detection position at a region overlapping an operation region of the alignment member to detect the stacking amount of the sheet delivered to the delivery portion. The stacking amount detecting means has a first stacking amount detection mode for detecting a stacking amount of the sheets stacked at the delivery portion during a first delivery mode in which the sheets processed by the sheet processing means are delivered to the delivery portion and a second stacking amount detection mode for detecting a stacking amount of the sheets stacked at the delivery portion during a second delivery mode for delivering the sheet to the delivery portion without executing the alignment operation.

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patent: 1 336 508 (2003-08-01), None

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