| 摘要 |
A finishing device having a sheet guiding and buffering mechanism located in the space between a sheet transporting assembly and a finishing platform. The mechanism has two parallel retractable arms having a slight curvature along their length. Sheets dispensed seriatim from the transport assembly onto the arms conform to the curvature of the arms. In a normal mode, the arms are retracted for each sheet delivered thereto and the individual sheets drop onto platform to form a set of stacked sheets. When the last sheet of a set is dropped, the mechanism changes to a buffering mode and the arms collect and hold the first few sheets of the next set. Once the previous set has been finished and ejected from the platform, the arms are retracted and the sheets collected are dropped, and the mechanism is changed to the normal cycle for the remainder of the subsequent set.
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