Xx-Fuser Error Service Check - Lexmark C734 Service Manual

Step Questions / actions
3 Measure the resistance across fuse F13 (A)
on the system board.
Is the fuse blown?
Perform the printhead verification to check
4
whether the new printhead solves the
problem. See "Printhead verification" on
page 3-35.
Perform the Servo Laser Test. See
Laser Test" on page
Did the printhead motor pass the test?
120.xx—Fuser error service check
Step Questions / actions
1 Check the input voltage switch on the back of
the low-voltage power supply (LVPS).
Note: Some LVPS FRU do not have switches
and switch automatically. If your does not
have a switch, go to step 2.
230
Is the voltage level (115 V/230 V) properly
set?
A
1 JBIN1 1 1 JFUSER1 1 JHVPS1 1 JBLW1 1
1 1 1
JSB1 JFAN1 JBOR1 JMIRR1 JOPP1
1
JCVR1
F5
F6 JT1
JLVPS2
1
JCARTP1 F7
1 J49
JCARTS1
1
JBOOT1 1
JUSB1
JDIMM1 1
F9
J10
JCARTS2
1
JTLBT1
1 1
JCARTP2 JFMUSB1 JFMUSB1
1 JTWF1
1
F10
JTDBUG1
1 JDVR1 1
JTPS1
1 J5
JOPT1
1 JDX1
1 F13 1
1 JFDS1
F12
1 JINT1 F14
JFDPCK1 JTRAY1 JSEC1
JPH1
1 1 JT12
"Servo
3-18.
A
Yes
Replace the system board.
See "System board
removal" on page 4-139.
Replace the printhead. See
"Printhead removal,
installation, and
adjustment" on
page 4-121.
Yes
Go to step 2.
5026
No
Go to step 4.
Replace the system board.
See "System board
removal" on page 4-139.
No
Set the switch for the
proper country voltage.
2-39
Diagnostic information