Xerox 8830 Service Manual

A D E
N
Connect the (+) meter lead to
A2P213-12 and leave the (-) meter
lead connected to A1Q1-MT1.
Pulses are present.
Y N
| Replace the Driver PWB, A2, PL
1.1.
Repair the wire between terminal G on
A1Q1 and A2P213-11 (wire no. 31).
r
Switch off the printer and disconnect the
power cord. Replace Fuser Triac, A1Q1,
PL 1.2. Then perform the following steps
to check that the ballast resistor circuit is
operating correctly:
1) Disconnect the BRN wire from
A1Q1-G.
2)
VAC
3)
4)
5)
Set the meter to read 60
(USO) or 120VAC (XR).
Connect the (+) meter lead to
A1Q1-MT2 (BLU wires).
Connect the (-) meter lead to
A1Q1-MT1 (WHT wires).
Connect the Power Cord and
switch on the printer.
At least 60 VAC (USO) or 120 VAC (RX)
is present.
Y N
Switch off the printer and disconnect
the power cord. Set the meter to read
8 to 21 ohms of resistance.
Disconnect the wires on each Ballast
Resistor, A1R1 and A1R2R2, before
measuring the resistance.
The resistance of each Ballast
Resistor, A1R1 and A1R2, Is 7 to 9
ohms (USO) or 19 to 21 ohms (RX)
Y N
A F G H
A1R2-1
A1R2-2A
A F G H
Replace both Ballast Resistors,
I A1R1 and A1R2.PL 1.2.
Y
Check the following Ballast Resistor
wires for continuity:
From To Color
A1R1-1 A1K3-8 RED
A1R1-2A A1Q1-BBLU
A1K3-4 RED
A1R1-2B BLU
The wires have continuity.
Y N
I Repair the wires.
Set the meter to read +26 VDC.
Connect the (+) meter lead to the
Fuser Ballast Power Relay, A1K3-1.
Connect the (-) meter lead to A1K3-0.
Reconnect the Power Cord and switch
on the printer.
There Is 4-26 VDC present for
approximately 5 seconds.
Y N
Connect the (+) meter lead to
A2P213-6. Connect the {-) meter
lead to A2P213-7. Switch off,
then switch on the printer.
There is +26 VDC present for
approximately 5 seconds.
Y N
Replace the Driver PWB, A2,
PL 1.1.
Repair the wires.
Replace the Ballast Relay, A1K3, PL
1.2.
Switch off the printer and disconnect the
Power Cord. Reconnect the wire to the
Fuser Triac A1Q1-G (BRN wire). The
procedure is complete.
A
The Thermistor Pad on the Thermistor Pad
Assembly touches the Fuser Roll.
Y N
I Replace the Thermistor Pad Assembly, PL
10.4.
The Thermistor Pad Is free of
contamination.
Y N
I Clean the Thermistor Pad with a clean
cloth.
Check the wires between the Fuser
Thermistor, RT1, and the Main PWB, A1, for
continuity.
The wires have continuity.
Y N
I Repair the wires.
Replace the Thermistor Pad Assembly, PL
10.4.
LL.41, LL.45 RAP
1/98
2-4
8830
A

Xerox 8830 Specifications

General

Brand	Xerox
Model	8830
Category	Printer
Language	English