Error Troubleshooting
Phaser 7100 Service Manual Xerox Internal Use Only2-452
Feeder Composition
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
• MCU PWB, PL 12.1.15
• Duplex Unit, PL 14.1.1
• 550-Sheet Feeder Assembly, PL 15.1.2
Troubleshooting Procedure
Step Actions and Questions Yes No
1. Check the connection of the 550-Sheet Feeder
Assembly.
Is 4 or more Sheet Feeder Assembly connected?
Remove the extra 550-
Sheet Feeder Assembly
until only 3 or fewer
are left.
Go to step 2.
2. Check the connection of 550-Sheet Feeder
Assembly.
Is there an Option Feeder for other than this
printer installed?
Connect the 550-Sheet
Feeder Assembly to
the printer.
Go to step 3.
3. Check the Duplex Unit.
Is there an Option Duplex Unit for other than this
printer installed?
Connect the Duplex
Unit to the printer.
Replace the MCU PWB
(REP 12.4 MCU PWB
on page 4-206).