Xerox DocuColor 12/DCCS50 Service Manual page 175

Y N
The display indicates a constant H.
Y N
Go to Flag 1 on BSD 10.7 and check the harness for a short circuit. If the harness is
good, replace the Fuser Exit Sensor
Connect the meter from P/J413A-4 on the IOT Drive PWB to GND. Block the Fuser Exit
Sensor with a sheet of paper. The voltage at P/J413A-4 goes from +5 VDC when the
sensor is not blocked, to less than +1.0 VDC when the sensor is blocked.
Y N
There is +5 VDC between P/J413A-14 and GND on the on the IOT Drive PWB.
Y N
Go to Flag 2 on BSD 10.7 and check the harness for a short circuit. If the har-
ness is good, replace the IOT Drive PWB
Go to Flag 1 and Flag 2 on BSD 10.7 and check the harness for an open circuit. If
the harness is good, replace the Fuser Exit Sensor
ues, replace the IOT Drive PWB
Replace the IOT Drive PWB (PL 9.2).
Enter dC330 010-005 Inverter Gate Solenoid (Exit). Press Start. The Inverter Gate Sole-
noid energizes.
Y N
+24 VDC is measured between P/J412B-9 and GND.
Y N
+24 VDC is measured between P/J412B-8 and GND.
Y N
Replace the IOT Drive PWB
Go to Flag 3 on BSD 10.7 and check the harness for an open circuit. If the harness is
good, replace the Inverter Gate Solenoid
Press Start. The voltage at P/J412B-9 momentarily goes to less than +1.0 VDC.
Y N
Replace the IOT Drive PWB (PL
Replace the Inverter Gate Solenoid (PL
Enter dC330 010-006 Inverter Gate Solenoid (Invert). Press Start. The Inverter Gate Sole-
noid energizes.
Y N
+24 VDC is measured between P/J412B-7 and GND.
Y N
Go to Flag 4 on BSD 10.7 and check the harness for an open circuit. If the harness is
good, replace the Inverter Gate Solenoid
Press Start. The voltage at P/J412B-7 goes to less than +1.0 VDC.
Y N
Replace the IOT Drive PWB (PL
Replace the Inverter Gate Solenoid (PL
A
Reissue
DocuColor 12/DCCS50
(PL 8.10).
(PL 9.2).
(PL 8.10). If the problem contin-
(PL 9.2).
(PL 9.2).
(PL 2.25).
9.2).
2.25).
(PL 2.25).
9.2).
2.25).
A
Enter dC330 010-033 Oil Pump. Press Start and Stop several times. The Exit Motor ener-
gizes and deenergizes.
Y N
Press Stop. Approximately +7 VDC is measured between P/J418B-17 on the IOT
Drive PWB and GND.
Y N
Go to Flag 1 and Flag 3 on BSD 10.9 and check the harness for an open circuit. If
the harness is good, replace the Exit Motor
Press Start. The voltage at P/J418B-17 momentarily goes to less than +1.0 VDC.
Y N
Replace the IOT Drive PWB
+24 VDC is measured between P/J418B-19 and GND on the IOT Drive PWB.
Y N
Replace the IOT Drive PWB
Go to Flag 2 on BSD 10.9 and check the harness for an open circuit. If the harness is
good, replace the Exit Motor (PL
PWB (PL 9.2).
Check for obvious damage, missing and/or broken Fuser Exit Drive gear assemblies and drive
belts that would cause the paper to be slow to actuate the Machine Exit Sensor
1/05
10-110 Machine Exit Sensor On Jam RAP
2-139
(PL 1.6).
(PL 9.2).
(PL 9.2).
1.6). If the problem continues, replace the IOT Drive
(PL
Status Indicator RAPs
1.6).