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5-48 Functional Information
Figure 5-32 Paper Feed for the Duplexer
Paper Jam
There are four photointerrupters (PS102, PS103, PS106, PS501) in
the paper path for detecting the presence of the paper.
If the paper does not reach or pass three sensors within the
prescribed time, the microprocessor in the Engine Controller Board
notifies the Formatter of a paper jam.