Xerox DocuColor 12/DCCS50, Service Manual

Page: 151 / 1617

1/05
2-115 DocuColor 12/DCCS50
9-355 Magenta Toner Dispenser Broken RAP, 9-356
Status Indicator RAPs
Reissue
Y N
Connect the meter between P/J432 -2 and GND. The meter reads a constant +5
VDC.
Y
N
Go to Flag 3
on BSD 9.5 and check the wire for an open circuit or a short circuit
to ground. If the wire is good, replace the Low Toner (M) Sensor ( PL 6.3 ). If the
problem continues, replace the IOT Drive PWB ( PL 9.2 ).
Vacuum the Magenta Dispense Housing. Reinstall the Magenta Toner Cartridge.
Enter dC330. Stack the codes [009-033 Dispense Motor M] and [009-258 Low Toner
Sensor M].
The sensor changes state as toner is dispensed.
Y N
+5 VDC is measured between
P/J433A -9 and P/J433A -7.
Y N
Go to +5VDC Wirenets ( Figure 1 ) and check the wires between P/J21 -1
on the IOT LVPS and P/J119 -1 on the Low Toner Sensor (M).
Go to DC COM (+5V RET) Wirenets and check the wires between P/J21 -
5 on the IOT LVPS and P/J119 -3 on the Low Toner Sensor (M).
Go to Flag 3 on BSD 9.5 and check the wire for a short circuit to ground. Check
the wires between P/J119 -1and P/J433A -9 and between P/J119 -3 and P/
J433A -7 for an open circuit. If the wires are good, replace the Low Toner (M)
Sensor ( PL 6.3 ).
This should resolve the problem. Ensure that there is no blockage in the dispense
area. Check the machine for proper operation.
The sensor indicates that toner is present in the Toner Dispense Housing and is being dis-
pensed. Replace the IOT Drive PWB (
PL 9.2 ).
Replace the Magenta Toner Cartridge (Section 6, Machine Consumables ).
9-356 Cyan Toner Dispenser Broken RAP
This fault code appears when any one of the following conditions occurs: the low toner sensor
detects that there is no toner for a period of 2 seconds; the low toner sensor detects that there
is no toner for a period of 500 seconds (approximately 8 minutes); or when the toner dispense
motor remains energized.
Initial Actions
Refer to BSD 9.5, 9.6 and BSD 9.15 for the following procedure.
Ensure that P/J432 , P/J433B , and P/J434 on the Dispense PWB, P P/J421B on the IOT
DRIVE PWB, P/J216 on the Cyan Cartridge Motor and P/J120 on the Cyan Low Toner Sensor
are connected before beginning this RAP.
NOTE: If the code doesn’t clear and the auger isn’t broken, go to NVM 776-062 and set the
value to 0. Then, go to NVM 776-374 Toner Cartridge C Empty and set the value to 0.
Procedure
Check the Cyan Toner Cartridge. The toner cartridge is empty.
Y N
NOTE: The Cartridge Motor is only energized for 10 seconds each time Start is pressed.
The display will indicate Off when the 10 seconds have expired. Pressing Start will ener-
gize the Cartridge Motor for another 10 seconds. Press Start as often as necessary to get
an accurate reading.
Remove the Cyan Toner Cartridge to see the Toner Cartridge Coupling. Cheat the Front
Door Interlock. Enter dC330 [009-014 Cartridge Motor C]. Press
Start. The Toner Car-
tridge Motor C operates.
Y
N
+12 VDC is measured at
P/J433B -3 and at P/J433B -1 on the Dispense PWB.
Y N
+24 VDC is measured between
P/J431 -2 and P/J431 -1 on the Dispense
PWB.
Y
N
Go to +24VDC Wirenets
and check the wires between P/J24 -2 on the IOT
LVPS and P/J431 -2 on the Dispense PWB.
Go to DC COM (24V RET) Wirenets and check the wires between P/J23 -
4 on the IOT LVPS and P/J431 -1 on the Dispense PWB.
+5VDC is measured between P/J421B -8 and GND on the IOT Drive PWB
when the display indicates Off.
Y
N
Go to Flag 4 on BSD 9.5. Check the wire for an open or a short circuit. If
the wire is good, replace the Dispense PWB ( PL 6.4 ). If the problem con-
tinues, replace the IOT Drive PWB ( PL 9.2 )
Press Start. The voltage momentarily goes to less than +1 VDC
Y N
Replace the IOT Drive PWB ( PL 9.2 )
Replace the Dispense PWB ( PL 6.4 )
A
A B C