Error
Description
Diagnostic Action
Control
1.
Position Printer Power switch to
ON.
Panel
Measure voltages at CN3 (see Section 5,
~
"Locations")
as
shown in chart below. Use
ground
on
Driver Circuit card.
Min
Max
Pin no.
voltage
voltage
CN3-16 +4.5 Vdc +5.5 Vdc
CN3-20
+12.6 Vdc +15.4 Vdc
CN3-l8 +21.6 Vdc +26.4 Vdc
Are all voltages correct?
YES: Go
to
step
2.
r-....
NO: Go
to
page 1400-6, "Power Supply
Check."
2.
Power
off
the Printer. Disconnect the
parallel printer cable at the printer.
Insert forms. Power on.
Are the Power, Ready, and Online lights on?
YES: Go to step
6.
NO:
Is
the alarm sounding and the No
Paper light on?
YES: Go
to
page 1400-24, "False
End-of-Forms Alarm."
NO: Go
to
step
3.
1400-26
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