Specifications

Flowcharts and TablesTroubleshooting
No Power to Fan (Continued)
Step Check Result Action
7 Switch off the printer and
disconnect connector P119
from the paper delivery
sensor. Connect the
multimeter between P119-2
(GND) and P119-3
(+5 VDC) and switch on the
printer. Does the voltage
measure approximately +5
VDC when you switch on
the printer?
No
Ye s
Check the cable connections between
P119 and P16 on the DC controller
board. If the connections are secure,
replace the DC controller board.
Replace the paper delivery sensor.
Table 3. Fuser Assembly Failure
Step Check Result Action
1 Is a toner cartridge installed
in the printer?
No Install a toner cartridge.
2 Switch off the printer,
connect a multimeter
between pins J101-2 and
J101-6 on the fuser
assembly, and switch on the
printer. Does the voltage
measure between +90 and
+132 VAC when you switch
on the printer?
No Replace the power supply.
3 Switch off the printer,
disconnect connector P11
from the DC controller
board. Measure the
resistance between
connector pins P11-13
(STS) and P11-14 (GND). Is
the resistance between
200 k
Ω and 350 k Ω at room
temperature?
No Replace the power supply.