3-114 Phaser 7500 Printer Service Manual
Error Messages and Codes
4 Check the connections between
the Motor Drive PWB J508 and the
IBT Drive Motor J248, as well as
between the Motor Drive PWB
J507 and the IBT Drive Motor J249
for open circuits, short circuits, and
poor contacts.
Are they conducting properly?
Replace the
following parts
in sequence:
â– IBT Drive
Motor
Assembly
(REP 3.10,
page 8-36)
â– Motor Drive
PWB (REP
18.13,
page 8-204)
â– MCU PWB
(REP 18.12,
page 8-202)
Repair the
sections that
have short
circuits and
poor contacts.
5 Remove the cheat.
Install the IBT Unit and close the L/
H Cover.
Perform the IBT Belt Motor test in
Diagnostics.
Does the IBT Drive Motor rotate?
Go to step 6. Check the IBT
Drive for loading.
Also, check the
IBT for loading
due to blockage
in the IBT Waste
Ton er Col lec tion
Auger.
6 Check the connection between the
IBT Drive Motor J249-8 and the
Motor Drive PWB J507-1 for open
circuit, short circuit, and poor
contact.
Replace the
following parts
in sequence:
â– Motor Drive
PWB (REP
18.13,
page 8-204)
â– MCU PWB
(REP 18.12,
page 8-202)
Repair the
sections that
have short
circuits and
poor contacts.
Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No