Post (Power-On Self Test)-Cartridge Motor 3 Not Connected Error Service Check - Lexmark C746n Service Manual

920.18—POST (power-on self test)—Cartridge motor 3 not connected error service
check
Step Questions / actions
Turn the printer off and remove the rear frame
1
cover. See
"Rear frame cover removal" on
page 4-47.
Reseat the cables in connectors JCARTP2
and JCARTS2.
Does the error clear?
Measure the continuity across all of the fuses
2
on the system board.
Are any of the fuses blown?
1. Remove the right cover. See
3
cover removal" on page
2. Check the connections on the cartridge
motor 2/3 cables and reseat the cables.
3. Check the routing on the cables for pinch
points and any other damage to the
cables or the connectors.
Is the cable free from damage?
Connect a new Cartridge motor 2/3 cable
4
from outside of the machine, then POR the
printer.
Note: Verify first if the cable is working
properly by testing connections of the cable
on motor 2 and 3 to the JCARTP2 and
JCARTS2 connectors. Route the cables
properly only when you have verified that the
cables are working properly.
Did the error clear?
Connect a new EP drive assembly from the
5
outside of the machine.
Note: Verify first if the EP drive assembly is
working properly. Connect the cables on the
fuser motor, cartridge motor 1, 2, and 3 on the
new EP drive assembly. Route the cables
properly only when you have verified that the
cables are working properly.
Did the error clear?
920.19—POST (power-on self test)—Transfer module stepper motor not connected
error service check
Step Questions / actions
Turn the printer off, and then remove the rear
1
frame cover. See
removal" on page
Reseat the motor driver cable in connector
JDVR1.
Does the error clear?
"Right
4-51.
"Rear frame cover
4-47.
Yes
Problem resolved.
Replace the system board.
See
"System board
removal" on page 4-163.
Replace the cartridge
motor 2/3 cable. See
"Cartridge motor 2/3
cable removal" on
page 4-77.
Replace the cartridge
motor 2/3 cable. See
"Cartridge motor 2/3
cable removal" on
page 4-77.
Return the old cartridge
motor 2/3 cable and
replace the EP drive
assembly. See
"Electrophotographic
(EP) drive assembly
removal" on page 4-98
Yes
Problem resolved.
5026
No
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Return the old EP drive
assembly and the old
cartridge motor 2/3 cable,
then replace the system
board. See
"System
board removal" on
page 4-163.
No
Go to step 2.
Diagnostic information
2-113
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