Xerox Phaser 7500 Service Manual page 257

Phaser 7500 Printer Service Manual
Troubleshooting Procedure (Continued)
Step Actions and Questions
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?
Error Messages and Codes
Yes No
Replace the Repair or replace
following parts the sections that
in sequence: have short
circuits and poor
IBT Fan 1,
■
IBT Fan 2 (PL contacts.
4.2.8)
MCU PWB
■
(REP 18.12,
page 8-202)
3-119