Xerox ColorQube 9303 Series - Page 40

February 2013
2-16
ColorQube® 9303 Family
01A
Status Indicator RAPs
01A AC Power Distribution RAP
Use this RAP to diagnose faults with the AC power distribution throughout the machine.
Initial Actions
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to GP 14. Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
Switch off the machine, then switch on the machine, GP 14. Check for PEST errors, go to
dC123 PEST Fault History. If a fault is given, perform the appropriate RAP. If the machine is
unresponsive, go to OF 3.
Procedure
AC Power is distributed widely throughout this machine. Either work through this RAP or if the
faulty area of the machine is known, select the required check from the list that follows:
NOTE: If multiple heater failures are noted, the fault is likely to exist in one of the following:
• Marking unit heater PWB supply, WD 9.8.
• Head thermistors safety circuit, refer to the 99-394-00 to 99-413-00 PEST Error 13 RAP
• WD 1.4, WD 9.2, WD 9.4 and WD 9.6 for IME common heater relay. The line signal must
be greater than +2.5V to close the relays
• Check the power supply output for the items that follow:
– Ink melt, refer to Ink Reservoir Heaters Check. If there is no voltage output, install a
new power supply unit, PL 1.15 Item 2
– Registration pre-heater, refer to Registration / Pre-Heaters Check. If there is no volt-
age output, install a new power supply unit, PL 1.15 Item 2
– Drum heaters, refer to Drum Heaters Check. If there is no voltage output, install a
new power supply unit, PL 1.15 Item 2
– Marking unit heater PWB supply, refer to Marking Unit Heater PWB Supply Check. If
there is no voltage output, install a new power supply unit, PL 1.15 Item 2
• Power to the Power Supply Unit Check
• Main Power Rocker Switch Check
• Ink Reservoir Heaters Check
• Ink Melt Heaters Check
• Drum Heaters Check
• Registration / Pre-Heaters Check
• Thermal Cutout Check
• Finisher Supply Check
• Marking Unit Heater PWB Supply Check
• Lower Umbilical Heater Check
• Head 1 Reservoir and Jetstack Heaters Check
• Head 3 Reservoir and Jetstack Heaters Check
• Upper Umbilical Heater Check
• Head 2 Reservoir and Jetstack Heaters Check
• Head 4 Reservoir and Jetstack Heaters Check
Power to the Power Supply Unit Check
Procedure
Check the green LED on top of the power supply, Figure 1. The green LED is lit.
YN
Check the customer AC supply. The AC supply is good.
YN
Inform the customer to resolve the power supply fault.
Check the power cord, PL 1.15 Item 1.
The ink reservoir, PL 93.10 Item 10, is warm.
YN
Go to:
• Main Power Rocker Switch Check
• Ink Reservoir Heaters Check
AC power is present and the power interlocks are operating.
Main Power Rocker Switch Check
Procedure
Switch off the machine, GP 14, disconnect the power cord. Refer to WD 1.1. Disconnect
PJ8AC on the power supply unit and measure the continuity between pins 1 and 2 of the
cable,
Continuity is measured when the main power rocker switch is in the on position
and open circuit is measured when the main power rocker switch is in the off position.
YN
Check the wiring between PJ8AC on the power supply unit and the main power rocker
switch and repair as necessary, refer to REP 1.1. If necessary, install new a main power
rocker switch, PL 1.15 Item 3.
Continuity is measured when the main power rocker switch is in off position.
YN
There is a short circuit or the switch has failed. Check the wiring between PJ8AC on the
power supply unit and the main power switch and repair as necessary, refer to REP 1.1. If
necessary, install new a main power rocker switch, PL 1.15 Item 3.
Install a new power supply unit, PL 1.15 Item 2.
Ink Reservoir Heaters Check
Procedure
Switch off the electricity to the machine, GP 14, and disconnect the power cord. Refer to WD
9.8. Disconnect PJ201 from the marking unit heater PWB. Check the electrical resistance of
the ink reservoir heaters, by measuring the resistance across the pins of the PJ201 harness as
follows:
• Ink reservoir heater 1, pin 1 to pin 3. Expect a cold resistance of approximately 45-55
ohms.
• Ink reservoir heater 2, pin 2 to pin 4. Expect a cold resistance of approximately 45-55
ohms.
The measured resistances are correct.
YN
Go to WD 9.8. Check the wiring between PJ201 on the marking unit heater PWB and the
ink reservoir heaters. Repair the wiring as necessary, REP 1.1. If necessary, install a new
reservoir assembly, PL 93.10 Item 26.
A