Phaser 7500 Printer Service Manual 3-119
Error Messages and Codes
5 Check the connection between the
IBT Fans J 619 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:
■ IBT Fan 1,
IBT Fan 2 (PL
4.2.8)
■ 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
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