Lexmark C734dn Service Manual page 131

Step Questions / actions
Turn the printer off, and then remove the rear
2
frame cover. See
"Rear frame cover
removal" on page
Reseat the transport cable in connector
JTPS1 (A).
A
Does the error clear?
Check the transport cable in connector JTPS1
3
for pinch points and for any other damage to
the cable or connector.
Is the cable damaged?
Check the continuity at JTPS1, pins 1–10).
4
1
Is there continuity?
Replace the transport belt assembly. See
5
"Transfer module removal" on page
Does the error clear?
4-33.
1 1 JFUSER1 1 JHVPS1 1 JBLW1 1
1 JBIN1
1 1 1
JSB1 JFAN1 JBOR1 JMIRR1 JOPP1 JOPP1
1
JCVR1 JCVR1
F5
F6 JT1
JLVPS2 JLVPS2
1
JCARTP1 F7
J49
1
JCARTS1
1
1
JBOOT1
JUSB1
JDIMM1 1
F9
J10
JCARTS2
1
JTLBT1
JCARTP2 1 1
1 JFMUSB1
1 JTWF1
F10
JDVR1 JTDBUG1
1 1
JTPS1
1
JOPT1 J5
1 JDX1
1 F13 1
1
JFDS1 F12
JINT1 F14
1
JFDPCK1 JTRAY1 JSEC1 JPH1
1 1 JT12
10
4-168.
Yes
Problem resolved.
Replace the transport
cable. See
"Transport
cable removal" on
page 4-170.
Go to step 5.
Problem resolved.
5026
No
Go to step 3.
Go to step 4.
Replace the cartridge
motor1/fuser motor cable.
See
"Cartridge motor 1/
fuser cable removal" on
page 4-62.
Replace the system board.
See
"System board
removal" on page 4-153.
Diagnostic information
2-95
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