Lexmark 522n - C Color Laser Printer, Руководство по обслуживанию

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2-52
Service Manual
4520-xxx
990 Service Error, envelopes fail to feed from the hopper.
260 Paper Jam displays, unable to clear and envelopes fail to feed
from the hopper.
Kick rolls are not rotating.
FRU Action
1 D.C. Feed Motor Assembly Check the motor and motor cable for
any signs of loose wires or poor
connections. Check to make sure
the motor cable is connected to the
envelope system board.
2 Envelope Feeder System
Board Check the voltage on J4-1. The
voltage measures approximately
+24 V dc. If incorrect, replace the
envelope system board, if correct,
measure the voltage at J4-6. The
voltage measures approximately
+5 V dc. If incorrect, disconnect J4
and measure the voltage again. If
incorrect, replace the envelope
feeder system board. If correct,
replace the D.C. motor assembly.
FRU Action
1 Main Drive Belt Check the belt for correct installation
and for signs of damage. Replace as
necessary.
2 Gears Check all the gears for correct
installation and for signs of damage.
Repair or replace parts as
necessary.
3 Clutch Latch Assembly Check the clutch latch assembly to
make sure it moves freely.
4 Master Cam Gear Master/
Kick Gear Check the master cam gear and
master/kick gear to make sure they
rotate together. If not, then the
tenons on the master kick gear may
be sheared off. If incorrect, replace
the master kick gear.