3-202 Phaser 5500 Printer Service Manual
Applicable Error Codes
Drum Cartridge Failure - J7-1 DRUM Comm Error
Drum Cartridge Failure - J7-2 DRUM NVRAM Error
Drum Cartridge Comm Failure Troubleshooting Reference
Applicable Parts References
â– Drum Cartridge
â– Drum Cartridge
CRUM PWB
â– Engine Logic Board
â– Print Engine P/J Drum and Toner (page 10-6)
â– Print Engine P/J Engine Logic Board (page 10-13)
â– Print Engine Drive/CRUM Wiring (page 10-25)
â– PL5.1 Laser, CRU and Toner Dispense (page 9-32)
â– PL8.1 Print Engine Electrical (page 9-40)
Drum Cartridge Comm Failure Troubleshooting Procedure
Step Actions and Questions Yes No
1
Check the Drum Cartridge installation.
Was the Drum Cartridge replaced?
Go to Step 2. Replace the
Drum Cartridge. If
the error persists,
go to Step 2.
2
Check the Drum Cartridge CRUM PWB.
Is the Drum Cartridge CRUM PWB
installed correctly?
Go to Step 3. Correct the
installation.
3
Check the Drum Cartridge CRUM PWB
connection.
Are P126 and P/J419 connected?
Go to Step 4. Connect P/126
and P/J419.
4
Check continuity between the Drum
Cartridge CRUM PWB and Engine Logic
Board.
1. Disconnect P/126 and P/J419.
2. Check for continuity at the following:
P126-6 <=> P/J419-1
P126-5 <=> P/J419-2
P126-4 <=> P/J419-3
P126-3 <=> P/J419-4
P126-2 <=> P/J419-5
Are these conductive?
Go to Step 5. Repair the wiring.
5
Check +5 V to Drum Cartridge CRUM
PWB.
Is there +5 V across P126-6 (+) <=>
ground?
Replace the Drum
Cartridge CRUM
PWB (
page 8-70).
Replace the
Engine Logic
Board
(
page 8-89).