Diagnostic information 2-115
7526
920.07—POST—Narrow media sensor error service check
3
1. Disconnect the cable in the connector
JTRAY1.
2. Connect the cable from the new paper
pick assembly in connector JTRAY1.
3. Enter Diagnostics mode (press and hold
buttons 3 and 6, turn on the MFP, and
release the buttons when the progress bar
displays).
4. Touch SENSOR TESTS.
5. Touch Dynamic Sensors.
6. Touch Input.
7. Activate the input sensor.
Did the touchscreen change from Open to
Closed?
Replace the paper pick
mechanism. See “Paper
pick mechanism
assembly removal” on
page 4-130.
Replace the system board.
See “System board
removal” on page 4-157.
Step Questions / actions Yes No
1 1. Turn the printer off.
2. Remove the rear frame cover. See “Rear
frame cover removal” on page 4-37.
3. Reseat the cable in connector JTRAY1.
Did 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 4-130.
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 4-157.
Step Questions / actions Yes No
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