Specifications

3
Flowcharts and TablesTroubleshooting
No Power to Fan (Continued)
Step Check Result Action
5 Connect a multimeter
between each of the
following sets of pins and
check for the following
voltages:
P11-10 (+24 V, brown wire)
and P11-2 (GND, black
wire) +24 VDC
P11-11 (+24 V, brown wire)
and P11-2 (GND, black
wire) +24 VDC
P11-12 (+24 V, orange wire)
and P11-2 (GND, black
wire) +24 VDC
P11-5 (+5 VB, yellow wire)
and P11-2 (GND, black
wire) +5 VDC
P11-6 (+5 VA, blue wire)
and P11-2 (GND, black
wire) +5 VDC
Are the voltages present
when you switch the printer
back on?
No Replace the power supply.
6 Switch off the printer,
connect a multimeter
between connectors P18-3
(+24V) and P18-2 (RTN) on
the DC controller, and
switch the printer back on.
Is the voltage approximately
+24 VDC?
Yes Replace the fan.