Lexmark E360DN Service Manual - Page 69

Transfer roll service check, Tray 2 service check, Pin 2: 24 V

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4513-420, -430 Transfer roll service check FRU Transfer roll Action Note: Do not touch the transfer roll except at its ends. Place a sheet of paper over the roll to prevent damage from finger oils or hand lotion. Check the springs in the left and right transfer roll bearings. Do not try to move the left spring. The bearing assemblies should support the transfer roll, applying evenly distributed forces to the PC drum. Replace the transfer roll assembly if the springs or bearings show signs of damage, or fatigue. Inspect the transfer roll for signs of wear, damage or contamination. Replace as necessary. Tray 2 service check FRU Tray 2 Action Turn the printer off. Separate the printer from Tray 2. Turn the printer on and check the voltages on connector J28 on the controller board. See the wiring diagram at the end of the service manual, or "Controller board connector pin values" on page 3-2 for the J28 connector. Pins 1, 4: 3.3 V Pin 2: 24 V Pin 6: Ground If the voltages are incorrent, then replace the controller board. If the voltages are correct, then try using Tray 2 again. If the printer error persists, then replace Tray 2. Diagnostics information 2-41

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Diagnostics information
2-41
4513-420, -430
Transfer roll service check
Tray 2 service check
FRU
Action
Transfer roll
Note:
Do not touch the transfer roll except at its ends. Place a sheet of paper over the roll to
prevent damage from finger oils or hand lotion.
Check the springs in the left and right transfer roll bearings. Do not try to move the left
spring. The bearing assemblies should support the transfer roll, applying evenly distributed
forces to the PC drum.
Replace the transfer roll assembly if the springs or bearings show signs of damage, or
fatigue.
Inspect the transfer roll for signs of wear, damage or contamination.
Replace as necessary.
FRU
Action
Tray 2
Turn the printer off.
Separate the printer from Tray 2.
Turn the printer on and check the voltages on connector J28 on the controller board. See
the wiring diagram at the end of the service manual, or
“Controller board connector pin
values” on page 3-2
for the J28 connector.
Pins 1, 4: 3.3 V
Pin 2: 24 V
Pin 6: Ground
If the voltages are incorrent, then replace the controller board. If the voltages are correct,
then try using Tray 2 again. If the printer error persists, then replace Tray 2.