Lexmark X734DE - Input Sensor Service Check

Diagnostic information 2-147
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Input sensor service check
Step Questions / actions Yes No
1 Is the input sensor flag damaged? Replace the paper pick
mechanism. See “Paper
pick mechanism
assembly removal” on
page 4-137.
Go to step 2.
2
Turn the printer off, and then remove the rear
frame cover. See “Rear frame cover
removal” on page 4-40.
Check the cable in connector JTRAY1 for
proper connection to the system board, for
pinch points, and any other damage to the
cable or connector. Check both ends of the
cable.
Is the cable damaged?
Replace the paper pick
mechanism. See “Paper
pick mechanism
assembly removal” on
page 4-137.
Go to step 3.
3
1. Disconnect the cable in the connector
JTRAY1.
2. ,Connect the cable to the new paper pick
assembly.
3. Bring the printer up in the Diagnostics
menu (turn off the printer, press and hold
3 and 6, turn on the printer.)
4. Touch SENSOR TESTS.
5. Touch Dynamic Sensors.
6. Touch Input.
Did the touchscreen change from Open to
Closed?
Replace the paper pick
mechanism. See “Paper
pick mechanism
assembly removal” on
page 4-137.
Replace the system board.
See “System board
removal” on page 4-165.
1
JSB1
JBIN1
JFAN1
JFUSER1JFUSER1
JBOR1
JHVPS1
JMIRR1
JBLW1
JCVR1
JLVPS2
JCARTP1
JCARTS1
JCARTS2
JCARTP2
JDVR1
JTPS1
JOPT1JOPT1
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