01/02
2-16
8825/8830 Printer
OF-3 Fuser Ballast RAP
Status Indicator RAPs
OF-3 Fuser Ballast RAP
Procedure
The customers lights flicker when the Machine is switched on.
YN
The fuser ballast is operating properly.
The machine has TAG 50 (50Hz only) installed.
YN
Switch off the printer and disconnect the power cord. Perform the following steps to
check that the ballast resistor circuit is operating correctly:
1. Disconnect the BRN wire from A1Q1-G.
2. Set the meter to read 60 VAC (USO) or 120 VAC (XR).
3. Connect the (+) meter lead to A1Q1-MT2 (BLU wires).
4. Connect the (-) meter lead to A1Q1-MT1 (WHT wires).
5. Connect the Power Cord and switch on the printer.
At least 60 VAC (USO) or 120 VAC (RX) is present.
YN
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 Resis-
tor, A1R1 and A1R2, is 7 to 9 ohms (USO) or 19 to 21 ohms (RX)
YN
Replace both Ballast Resistors, A1R1 and A1R2, PL 1.2A.
Check the following Ballast Resistor wires for continuity;
The wires have continuity.
YN
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 +26 VDC present for approximately 5
seconds.
YN
Connect the (+) meter lead to A2P213-6. Connect the (-) meter lead to
A2P213-7. Reconnect the Power Cord and switch on the printer. There is +26
VDC present for approximately 5 seconds.
YN
Replace the Driver PWB, A2, PL 1.1A.
Repair the wires.
Replace the Ballast Relay, A1K3, PL 1.2A.
Replace the Heat Rod Control PWB PL 1.2A.
Table 1 Ballast Resistor Wires
From To Color
A1R1-1 A1K3-8 RED
A1R1-2A A1Q1-B BLU
A1R2-1 A1K3-4 RED
A1R2-2A A1R1-2B BLU
A
A
B
B
C
C
D
D
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