Xerox ColorQube 9303 Series - Page 41

February 2013
2-17
ColorQube® 9303 Family
01A
Status Indicator RAPs
The ink reservoir heaters are good. If necessary, install a new Marking unit heater PWB, PL
92.10 Item 5. Perform SCP 5 Final Actions.
Ink Melt Heaters Check
Procedure
Switch off the electricity to the machine, GP 14, and disconnect the power cord. Refer to WD
1.2. Disconnect PJ5AC from the power supply unit. Check the electrical resistance of the four
ink melt heaters by measuring the resistance across the pins of the PJ5AC harness as follows:
• Black ink melt heater, pin 6 to pin 12. Expect a cold resistance of approximately 70-80
ohms.
• Yellow ink melt heater, pin 6 to pin 13. Expect a cold resistance of approximately 70-80
ohms.
• Cyan ink melt heater, pin 7 to pin 1. Expect a cold resistance of approximately 70-80
ohms.
• Magenta ink melt heater, pin 7 to pin 11. Expect a cold resistance of approximately 70-80
ohms.
• Check that pin 7 to chassis is open circuit.
• Check that pin 6 to the chassis is open circuit.
The measured resistances are correct.
YN
Go to WD 1.2. Check the wiring between PJ5AC and PJX to the ink melt heaters. Repair
the wiring as necessary, refer to REP 1.1. If necessary, install a new ink loader melt plate
assembly, PL 93.10 Item 3.
The ink melt heaters are good. If necessary, install a new power supply unit, PL 1.15 Item 2.
Drum Heaters Check
Procedure
Switch off the electricity to the machine, GP 14, and disconnect the power cord. Refer to WD
1.2. Disconnect PJ5AC from the power supply unit. Check the electrical resistance of the two
drum heaters by measuring the resistance across the pins of the PJ5AC harness as follows:
• Drum heater 1 first section, pin 15 to pin 16. Expect a cold resistance of approximately 40-
50 ohms.
• Drum heater 1 second section, pin 15 to pin 17. Expect a cold resistance of approximately
40-50 ohms.
• Drum heater 2 first section, pin 10 to pin 19. Expect a cold resistance of approximately 40-
50 ohms.
• Drum heater 2 second section, pin 10 to pin 20. Expect a cold resistance of approximately
40-50 ohms.
• Check that pin 15 to the chassis is open circuit.
• Check that pin 10 to the chassis is open circuit.
The measured resistances are correct.
YN
Go to WD 1.2. Check the wiring between PJ5AC on the power supply unit, and PJX to the
drum heaters. Repair the wiring as necessary, refer to REP 1.1. As necessary, install a
new drum, PL 94.20 Item 1.
Go to Thermal Cutout Check
Registration / Pre-Heaters Check
Procedure
Switch off the electricity to the machine, GP 14, and disconnect the power cord. Refer to WD
1.2. Disconnect PJ5AC from the power supply unit. Check the electrical resistance of the regis
-
tration/pre-heaters by measuring the resistance across the pins of the PJ5AC harness as fol-
lows:
• Registration pre-heater 1, pin 3 to pin 9. Expect a cold resistance of approximately 50-60
ohms.
• Registration pre-heater 2, pin 2 to pin 8. Expect a cold resistance of approximately 50-60
ohms.
• Check that pin 8 to the chassis is open circuit.
• Check that pin 9 to the chassis is open circuit.
The measured resistances are correct.
YN
Go to WD 1.2. Check the wiring between PJ5AC on the power supply unit, and PJ140 to
the registration preheat assembly. Repair the wiring as necessary, refer to REP 1.1. As
necessary, install a new registration preheat assembly PL 88.10 Item 1.
The registration/pre-heaters are good. If necessary, install a new power supply unit, PL 1.15
Item 2.
Thermal Cutout Check
Procedure
Switch off the electricity to the machine, GP 14, and disconnect the power cord. Refer to WD
1.2. Disconnect PJ5AC harness on the power supply unit. Check the continuity of the thermal
cutouts on the thermal cutout PWB, by measuring the resistance across the pins of the PJ5AC
harness as follows:
• cutout for drum heater 1, pin 4 to pin 14. Expect a short circuit.
• cutout for drum heater 2, pin 5 to pin 18. Expect a short circuit.
• Check that pin 4 and 5 to the chassis is open circuit.
The measured resistances are correct.
YN
Go to WD 1.2. Check the wiring between PJ5AC on the power supply unit and PJ140 to
the thermal cutout PWB, PL 88.10 Item 11. Repair as necessary, refer to REP 1.1. As
necessary, install a new thermal cutout PWB, PL 94.20 Item 11.
The thermal cutouts are good. Refer to WD 9.4. Switch on the electricity to the machine, GP
14, and check the voltage on PJ902 pin 1 or pin 2 on the drum driver PWB is greater than
+2.5V. Check the voltage on PJ902 pin 33 on the drum driver PWB is greater than +2.5V.
The
voltages are good.
YN
Install a new drum driver PWB, PL 1.15 Item 4.
Check the condition of harness between PJDC2 of the power supply unit and PJ 902 of the
drum driver PWB.
The harness is good.
YN
Repair the harness, REP 1.1.
Install a new power supply unit, PL 1.15 Item 2.
A