Lexmark X734DE - Exit Sensor Service Check

Diagnostic information 2-145
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Exit sensor service check
6
1. Turn the printer off.
2. Disconnect cables J5, JCARTS1.
JCARTS2, JDVR1, JFDPCK1, JFUSER1,
JINT1, JOPT1, and JTLB%1.
3. Connect the JLVPS2 cable to the system
board. Remove one option/feature at a
time, and then turn the printer on to isolate
the failing part.
Warning: Observe all the ESD precautions
(see “Handling ESD-sensitive parts” on
page 4-2) and turn the printer off before any
feature or option cards are removed or
replaced.
Is a failing part found?
Contact your next level of
support. Replace the faulty
part.
Go to step 7.
7
Connect one cable at a time and POR the
printer.
Is the printer still dead?
The part connect to that
cable is faulty. Replace the
failing part.
Connect another cable,
and then continue with this
step.
Step Questions / actions Yes No
1 Verify the paper is loaded properly in the
paper tray or manual feed slot.
Is the paper properly loaded?
Go to step 2. Load paper correctly.
2
Turn the printer off, and remove the fuser.
See “Fuser assembly removal” on
page 4-114.
POR the printer.
Did the error clear?
Problem resolved. Remove the new fuser, and
go to step 3.
3
Remove the rear frame cover. See “Rear
frame cover removal” on page 4-40.
Check the fuser DC cable in the connector
JFUSER1 for proper connection to the system
board, for pinch points, and for any other
damage to the cable or the connector.
Is the cable damaged?
Replace the fuser DC
cable. See “Fuser DC
cable removal” on
page 4-117.
Go to step 5.
Step Questions / actions Yes No
1
JSB1
JBIN1
JFAN1
JFUSER1
JBOR1
JHVPS1
JMIRR1
JBLW1
JCVR1JCVR1
JLVPS2
JCARTP1
JCARTS1
JCARTS2
JCARTP2
JDVR1
JTPS1
JOPT1
JFDS1
JINT1
JFDPCK1JTRAY1JSEC1
JDX1
JT12
J5
JDIMM1
JOPP1
JT1
JUSB1
JBOOT1
JFMUSB1
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