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Xerox DocuPrint N17 Service Manual
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Offset Catch Tray (OCT) Option
9.7.5 OCT Stack Full Sensor Failure
Initial Actions
Check that the Full Stack Sensor Actuator has free movement.
1 The Full Stack Sensor functions correctly.
NOTE: This can be inspected by performing Diagnostic Mode 1, Sensor Input Test.
Y: Replace the Print Engine Controller
N: Go to step 2.
2 Check the voltage applied to the Stack Full Sensor. There is +5VDC between P224-1 and P224-
3.
Y: Go to step 3.
N: Go to step 6.
3 Check the signal of the Stack Full Sensor (OCT STK SNR). There is +5VDC between P224-2
and P224-3.
Y: Go to step 4.
N: Replace the OCT PWB.
4 Check the signal of the Stack Full Sensor (OCT STK SNR). The voltage between P/J224-2 and
P/J224-1 is at the high level when the Exit Tray is full and at the low level when the Exit Tray is
not full.
Y: Go to step 6.
N: Go to step 5.
5 Check the Connector Harness Assembly. There is continuity between J225 and J224.
Y: Replace the Stack Full Sensor.
N: Replace the Connector Harness Assembly.
6 Check the voltage applied to the Stack Full Sensor. There is +5VDC between P21-7 and P21-8.
Y: Go to step 7.
N: Go to
RAP 7.4.5 Low Voltage Power Supply (LVPS) Assembly Failure (+5VDC).
7 Check the signal of the Stack Full Sensor (STK FULL SNR (OCT)). There is +5VDC between
P21-2 and P21-8, when the OCT is full.
Y: Go to step 8.
N: Replace the Print Engine Controller.
8 Check the signal of the Stack Full Sensor (STK FULL SNR (OCT)). The voltage between P/J21-
2 and P/J21-8 is at the high level when the Exit Tray is full and at the low level when the Exit Tray
is not full.
Y: Replace the Print Engine Controller.
N: Go to step 9.
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