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PTM 2-81 B070/B071
2.11.4 BASIC DUPLEX FEED OPERATION
To improve the productivity of duplex copying, a non-stacking style duplex mechanism
is adopted. This type of mechanism allows more than one page to be processed at
once, in a process called ‘interleaving’. Examples of this are given below.
For paper lengths up to A4/Letter LEF, the top duplex speed is possible, with the
duplex unit processing four sheets of copy paper at the same time.
For paper longer than this, the duplex tray can process two sheets of copy paper at
once.
For a single-set duplex copy job, the duplex unit stores only one sheet of copy paper.
For a multi-set duplex job, the job is stored first, then the first set is made using
interleaving.
Length up to A4/Letter LEF
The duplex unit can process four sheets of copy paper
Example: A 14-page copy. The large numbers in the illustration show the order of
pages. The small numbers in circles show the order of sheets of copy paper
(if shaded, this indicates the second side).
1. The first 4 sheets are fed and printed.
1) 1st sheet printed (1st page)
2) 2nd sheet printed (3rd page)
3) 3rd sheet printed (5th page)
4) 4th sheet printed (7th page)
1410813611
3 971
⇒⇒
5
⇒⇒
2
⇒⇒
4
1 2 3 4 1 5 2
12
⇒⇒⇒⇒⇒⇒
6 3 7 4 5 6 7
B070D550.WMF
B070D807.WMF