Lexmark C734dn Service Manual page 85

Step Questions / actions
Is the multipurpose feeder damaged?
2
1. Turn the printer off.
3
2. Remove the rear frame cover. See
frame cover removal" on page
3. Check the cable in connector JDX1 (A)
(MP feeder/duplex motor cable) for proper
connection to the system board, the cable
for pinch points, and the cable or
connector for any other damage.
A
Is the cable damaged?
Remove the right cover. See
4
removal" on page
feeder/duplex motor cable for proper
connection to the MPF/duplex motor, pinch
points for the cable, and damage to the cable
or connector.
Is either cable damaged?
"Rear
4-33.
1 JBIN1 1 1 JFUSER1 1 JHVPS1 1 JBLW1 1
JSB1 1 1 1 JOPP1
JFAN1 JBOR1 JMIRR1
1
JCVR1
F5 F6 JT1
JLVPS2
1
JCARTP1 F7
1 J49
JCARTS1
1
1
JBOOT1
JUSB1
JDIMM1 1
F9
J10
JCARTS2
1
JTLBT1 JTLBT1
JCARTP2 1 1
1 JTWF1 JFMUSB1
1
F10
1 JDVR1 1 JTDBUG1
JTPS1
1
J5
JOPT1
1 JDX1 1
1 F13
1 JFDS1
F12
1 JINT1 JINT1 F14
JFDPCK1 JTRAY1 JSEC1 JPH1
1 1 JT12
"Right cover
4-37. Check the MP
Yes
Replace input tray.
Replace the MPF/duplex
motor cable. See
"Multipurpose feeder
(MPF)/duplex motor
cable removal" on
page 4-121.
Replace the MPF/duplex
motor cable. See
"Multipurpose feeder
(MPF)/duplex motor
cable removal" on
page 4-121.
5026
No
Go to step 3.
Go to step 4.
Go to step 5.
Diagnostic information
2-49
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