3-116 Phaser 7500 Printer Service Manual
Error Messages and Codes
4 Check the connections between
the Motor Drive PWB J505 and the
Main Drive Motor J244, as well as
between the Motor Drive PWB
J504 and the Main Drive Motor
J245 for open circuits, short
circuits, and poor contacts.
Replace the
following parts
in sequence:
â– Main Drive
Motor
Assembly
(REP 3.5,
page 8-30)
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
Left Hand Cover.
Perform the Main Motor test in
Diagnostics.
Does the Main Drive Motor rotate?
Go to step 6. Check the 2nd
BTR for loading
and the Drive
Gear for rotation
failure and
damage.
6 Perform the Main Motor test in
Diagnostics.
Perform the Ta ke a way C lu tch test
in Diagnostics.
Does the Main Drive Motor rotate?
Go to step 7. Check the Tray 1
Ta ke awa y Rol l
for loading and
the Drive Gear
for rotation
failure and
damage.
7 Perform the Main Motor test in
Diagnostics.
Perform the Registration Clutch
test in Diagnostics.
Does the Main Drive Motor rotate?
Go to step 8. Check the Regi
Roll for loading
and the Drive
Gear for rotation
failure and
damage.
8 Check the connection between the
Main Drive Motor J245-8 and the
Motor Drive PWB J504-9 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