2-100 Service Manual
5026
920.08—Exit sensor service check
3
POR the printer. 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 4-155.
4
1. Disconnect the cable in JTRAY1.
2. Connect the cable from the new paper
pick mechanism.
3. Bring the printer up in Diagnostic menu
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
4. Navigate to SENSOR TESTS > Dynamic
Sensors > Narrow Media.
5. Activate the narrow media sensor.
Did the narrow media sensor change from
Closed to Open?
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 4-155.
Step Questions / actions Yes No
1 Verify the paper is loaded properly in the
paper tray or manual feed slot.
Is the paper properly loaded?
Go to step 2. Load paper correctly.
2
1. Turn the printer off.
2. Install the new fuser. See “Fuser
removal” on page 4-110
Note: Do not reset fuser count or run
motor calibration yet.
3. POR the printer.
Did the error clear?
Problem resolved.
Note: Complete the fuser
installation: reset fuser
count and run motor
calibration. See “Fuser
removal” on page 4-110.
Remove the new fuser, and
go to step 3.
3
Remove the rear frame cover. See “Rear
frame cover removal” on page 4-47.
Check the fuser DC cable in the connector
JFUSER1 for proper connection to the system
board, for pinch points, and for any other
damage to the cable or the connector.
Is the cable damaged?
Replace the fuser DC
cable. See “Fuser DC
cable removal” on
page 4-113.
Go to step 4.
Step Questions / actions Yes No
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