Post (Power-On Self Test) Error Service Check - Lexmark C734 Service Manual

5026
920.04—POST (power-on self test) error service check
Step Questions / actions
1 Turn the printer off, and then remove the rear
frame cover. See
removal" on page
Reseat the cables in connectors
JCARTP1 (A) and JCARTS1 (B).
A
B
Does the error clear?
2 Check the cartridge motor 1/fuser cable in
connector JCARTP1 and JCARTS1 for pinch
points and the cables or connectors for any
other damage.
Are the cables damaged?
Remove the right cover.See
3
removal" on page
motor 1/fuser motor cable (A) for proper
connection to the EP drive assembly, pinch
points for the cable, and damage to the cable
or connector.
Is either cable damaged?
Replace the EP drive assembly. See
4
"Electrophotographic (EP) drive assembly
removal" on page
Does the error clear?
2-94
Service Manual
"Rear frame cover
4-33.
1 JBIN1 1 1 JFUSER1 JHVPS1 1 1 JBLW1 1
JSB1 1 JFAN1 JBOR1 1 JMIRR1 1 JOPP1
1
JCVR1
F5
F6 JT1
JLVPS2
1
JCARTP1 F7
1 J49
JCARTS1
1
1
JBOOT1
JUSB1
1
JDIMM1
F9
J10
JCARTS2
1
JTLBT1
JCARTP2 1 1
1 JFMUSB1
1 JTWF1
F10
JTDBUG1
1 JDVR1 1
JTPS1
1
J5
JOPT1
1 JDX1 1
1 F13
1 JFDS1
F12
JINT1 F14
1
JFDPCK1 JTRAY1 JSEC1
JPH1
1 1 JT12
"Right cover
4-37. Check the cartridge
4-69.
Yes
Problem resolved.
Replace the cartridge
motor1/fuser cable. See
"Cartridge motor 1/fuser
cable removal" on
page 4-51.
Replace the cartridge
motor 1/fuser motor cable.
See "Cartridge motor 1/
fuser cable removal" on
page 4-51.
Problem resolved.
No
Go to step 2.
Go to step 3.
Go to step 4.
Replace the system board.
See "System board
removal" on page 4-139.