Lexmark ExecJet II 4076, User Manual

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4076-0XX
22
Simm Service Check
Transport Service Check
FRUU or PROCEDURE Action
1 SIMM Card Try the following:
1. Reseat the SIMM card.
2. Use Toolkit, on the setup diskette,
to format the SIMM card.
3. Try a known good SIMM card. If
the failure continues, replace the
system board.
FRU OR PROCEDURE ACTION
1 Transport Motor Check the motor for binds, or loose
motor pulley.
Disconnect the transport motor (J6)
from the system board. Check for 8 to
18 ohms between pins 1 and 2 on the
motor cable. If the reading is incor-
rect, replace the motor.
Check for motor pins shorted to the
motor housing. If you find a pin
shorted to the housing, replace the
motor. If the failure remains, replace
the system board.
2 System Board Turn the printer off and disconnect J6
from the system board. Turn the
printer on and check for a pulse of 3
to 5 V dc between J6-1 and ground
and between J6-2and ground on the
system board as the machine goes
through POST.
3 Transport Belt
Carrier Guide or Guide Rod
Idler Pulley Parts
Cable Clip Check for worn, loose or broken
parts. Clean the carrier guide rod. Do
not lubricate the rod or the carrier rod
bearings. Check for obstructions
blocking carrier movement.
4 Encoder Strip Check for wear and dirt.