Lexmark X734DE - Page 109

Diagnostic information 2-71
7526
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3
Measure the resistance across fuse F13 on
the system board.
Is the fuse blown?
Replace the system board.
See “System board
removal” on page 4-165.
Go to step 4.
4
Is the front door assembly damaged?. Replace the front door
assembly. See “Front
door assembly removal”
on page 4-103.
Go to step 5.
5
Check the MPF/duplex gear assembly for
damage.
Are the gears damaged?
Replace the MPF/duplex
gear assembly. See
“Multipurpose feeder
(MPF)/duplex gear and
housing removal” on
page 4-128.
Go to step 6.
6
Replace the MPF/duplex motor assembly.
See “Multipurpose feeder (MPF)/duplex
motor assembly removal” on page 4-130.
Does the error clear?
Problem resolved. Go to “Input sensor
service check” on
page 2-147.
Step Questions / actions Yes No
1
JSB1
JBIN1
JFAN1
JFUSER1
JBOR1
JHVPS1
JMIRR1
JBLW1
JCVR1
JLVPS2
JCARTP1
JCARTS1
JCARTS2
JCARTP2
JDVR1
JTPS1
JOPT1
JFDS1
JINT1
JFDPCK1JTRAY1JSEC1
JDX1
JT12
J5
JDIMM1
JOPP1
JT1
JUSB1
JBOOT1
JFMUSB1JFMUSB1
J49
JTWF1
JTDBUG1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
JTLBT1
JPH1
F5
F6
F7
F9
F10
F12
F13
F14
1
1
J10
1
1
A