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8-5 B070/B071
8.3.2 PAPER FEED
Power On
When paper is placed on the tray, the paper set sensor [A] in the tray actuates and
switches on the bottom plate lift motor [B]. The top of the stack raises the pick-up
roller unit until the actuator on this unit actuates the pick-up roller position sensor
[C] and switches the motor off.
Paper Separation and Feed
The pick-up roller [D] picks up the original, and the feed belt [E] feeds the sheet to
the grip roller. The separation roller [F] reverses if more than one sheet is fed
Bottom Tray Lift
As sheets feed from the top of the stack:
• The pick-up roller unit descends until the actuator on the pick-up roller unit drops
out of the pick-up roller position sensor [C].
• The bottom plate lift motor switches on to raise the stack until the actuator enters
the pick-up roller unit position sensor again and switches the motor off.
• This repeats until the end of the job or until paper runs out.
Paper Near-end
Near-end is detected when the actuator [G] on the bottom plate enters the near-
end sensor [H]
Paper End
After the last sheet feeds the paper set sensor [A] goes off and signals paper out.
B470D005.WMF
[H]
[C]
[B]
[A]
[E]
[D]
[F]
[G]