Phaser 7500 Printer Service Manual 3-121
Error Messages and Codes
5 Check the connection between the
IBT Fans J 238 and the MCU PWB J
416 for open circuit, short circuit,
grounded condition and poor
contact.
Is it conducting properly?
Replace the
following parts
in sequence:
â– Process 2
Fan (REP
18.3,
page 8-189,
steps 1-4)
â– MCU PWB
(REP 18.12,
page 8-202)
Repair or replace
the sections that
have short
circuits and poor
contacts.
Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No