Printhead Cooling Fan Service Check; Power Supply Cooling Fan Motor Service Check; Suction Fan Motor Service Check - Lexmark Optra SC 1275 Service Manual

Printhead Cooling Fan Service Check

FRU
1 • Printhead
Cooling Fan
Motor (M5)
• Mechanical
Controller
Board
(PWB-A)

Power Supply Cooling Fan Motor Service Check

FRU
1 • Power Sup-
ply Cooling
Fan Motor
(M6)
• Mechanical
Controller
Board
(PWB-A)

Suction Fan Motor Service Check

FRU
1 • Suction Fan
Motor (M7)
• Mechanical
Controller
Board
(PWB-A)
Action
See if the printhead cooling fan motor (M5) rotates
when the power is turned on. If it does, replace the
mechanical controller board. If it does not, replace
the fan motor. If you still have the problem, replace
the mechanical controller board.
Action
See if the power supply cooling fan motor (M6)
rotates when the power is turned on. If it does,
replace the mechanical controller board. If it does
not, be sure the fan is plugged into the low voltage
power supply. If this does not correct the failure,
replace the fan motor. If you still have the problem,
replace the mechanical controller board.
Action
See if the suction fan motor (M7) rotates when the
power is turned on. If it does, replace the mechani-
cal controller board. If it does not, replace the fan
motor. If you still have the problem, replace the
mechanical controller board.
Diagnostic Information 2-39