Lexmark C734dn Service Manual page 118

5026
Step Questions / actions
1. Turn the printer off.
3
2. Remove the rear frame cover. See
frame cover removal" on page
3. Remove the right cover. See
cover removal" on page
4. Check the connector at JOPT1 on the
system board for proper connection, the
cable for pinch points, and the cable or
connector for any other damage.
A
Is the cable damaged?
Carefully lift the printer off the option, and lay
4
the printer on its back.
Check the option connector for damage.
Is the connector damaged?
Is tray 4 a high-capacity input option (2,000-
5
sheet feeder)?
Replace the complete tray 4 option.
6
Does the error clear?
Replace the high-capacity input tray (2,000-
7
sheet feeder)?
Service Manual
2-82
Replace the option cable.
"Rear
4-33.
"Right
4-37.
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
1
JBOOT1
JUSB1
JDIMM1 1
F9
J10
JCARTS2
1
JTLBT1
JCARTP2 1 1
1 JTWF1 JFMUSB1
1
F10
1 JDVR1 JTDBUG1
1
JTPS1
1 J5
JOPT1
1 JDX1
1 F13 1
1 JFDS1
F12
JINT1 F14
1
JFDPCK1 JTRAY1 JSEC1 JPH1
1 1 JT12
Replace the option cable.
See
"Option cable
removal" on page
Go to step 7.
Problem resolved.
Problem resolved.
Yes
Go to step 4.
Go to step 5.
4-125.
Go to step 6.
Replace the system board.
See
"System board
removal" on page
Replace the system board.
See
"System board
removal" on page
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