Diagnostic information 2-111
7526
920.07—POST error service check
Step Questions / actions Yes No
1 Turn the printer off, and then remove the rear
frame cover. See “Rear frame cover
removal” on page 4-40.
Reseat the cable in connector JTRAY1.
Does the error clear?
Problem resolved. Go to step 2.
2
Check the cable in connector JTRAY1 for
pinch points and the cable or connector for
any other damage.
Is the cable damaged?
Replace the paper pick
mechanism. See “Paper
pick mechanism
assembly removal” on
page 4-137.
Go to step 3.
3
Place a voltmeter between JTRAY1 pin 4 and
ground (pin 1).
Does the meter read +5 V dc?
Go to step 4 Replace the system board.
See “System board
removal” on page 4-165.
4
1. Disconnect the cable in JTRAY1, and
connect the cable from the new paper pick
mechanism.
2. Bring the printer up in the Diagnostics
menu (turn off the printer, press and hold
3 and 6, turn on the printer.)
3. Touch Sensor Tests.
4. Touch Dynamic Sensors.
5. Touch Narrow Media.
6. Activate the narrow media sensor.
Did the narrow media sensor change from
Closed to Open on the touchscreen?
Remove 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
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