2L6/2N6/2N5/2N4
1-4-98
2730
Paper conveying
unit
1. The main-unit access drawer of the
paper conveying unit has no foreign
objects adhered or no distorted pins
and, if necessary, repair.
2. Check the paper conveying unit is firmly
closed.
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Relay PWB (YC1) and Feed PWB
1(YC14)
4. If the wiring is disconnected, shorted or
grounded, replace the wiring.
5. Replace the paper conveying unit and
execute U052 (see page 1-3-47).
Feed PWB 1
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Feed PWB 1 (YC1) and Engine PWB
(YC6)
2. Check that the IC on the feed circuit
PWB1 is not damaged (by an
overcurrent or foreign object) and, if
necessary, replace.
Engine PWB
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
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