(57) Method of pre-collation copying of simplex documents by recirculating them in forward
serial page order in which the set of simplex document sheets is stacked in proper
page order, but face-down and overlying the imaging station (23), and circulated in
its first and last circulations through a non-inverting reversing document path (58)
between the stack (22) and the imaging station (23). In all other circulations of
the document set the documents circulate through a different, uni-directional, document
path with two inversions, with a single inversion (54) between the stack and the imaging
station and another common inversion (42) between the imaging station and the stack
used in all circulations, to provide proper simplex/duplex copying of an odd or even
number of simplex documents without counting them before they are copied.
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