Xerox N2125N - DocuPrint B/W Laser Printer, Service Manual

Page: 71 / 335

02/2000
2-54 DocuPrint N2125
RAP 64, RAP 65
Initial Issue Status Indicator Repair Analysis Procedures
RAP 64 Envelope No Paper Sensor
Procedure
Enter Diagnostics and select Component Test. Scroll to Sensor Input Test and press Enter.
Press and release the Envelope Feeder No Paper Sensor Actuator. The number on the LCD
increments each time you press and release the Actuator.
Y
N
Switch the Printer power off. Remove the Left Interface Cover (
REP 1.1 ), Left Cover ( REP
1.2 ), and the Left Plate Assembly ( REP 1.11 ). Switch the Printer power on. On the Print
Engine Controller PWB check the voltage between P/J23 Pin 4 and the frame ground.
The voltage is 0.0VDC.
Y
N
Go to RAP
RAP 62 .
Check the voltage between P/J23 Pin 3 and frame ground. The voltage is 3.3 with the
Envelope Feeder No Paper Sensor de-actuated and 0.0VDC with the sensor actu-
ated.
Y
N
Switch the Printer power off and remove the Envelope Feeder. Check for continuity
between J418 (Envelope Connector Assembly) and P/J23 Pin 3 on the Print Engine
Controller PWB. There is continuity between the pins.
Y
N
Remove the Front Cover (
REP 1.6 ) and the Front Left Cover ( REP 1.7 ). Check
for continuity between P/J41 Pin 5 on the Connector PWB and P/J23 Pin 3 on
the Print Engine Controller PWB. There is continuity between the two pins.
Y
N
Check the Connector Harness Assembly for proper connection and for
defective wires. Repair or replace if necessary. If Harness is in good con-
dition, replace the Connector PWB (
REP 9.7 ).
Replace the Envelope Connector Assembly ( REP 4.10 ).
Replace the Envelope Feeder PWB ( REP 13.3 ). If the problem persists, replace the
Envelope Feeder No Paper Sensor ( REP 13.10 ).
Replace the Print Engine Controller PWB ( REP 9.3 ).
Replace the Print Engine Controller PWB ( REP 9.3 ).
RAP 65 Load Envelope (C5)
Procedure
Enter Diagnostics and select Component Test. Scroll to Sensor Input Test and press Enter.
Press and release the Envelope Feeder No Paper Sensor Actuator. The number on the LCD
increments each time you press and release the Actuator.
Y
N
Switch the Printer power off. Remove the Left Interface Cover (
REP 1.1 ), Left Cover ( REP
1.2 ), and the Left Plate Assembly ( REP 1.11 ). Switch the Printer power on. On the Print
Engine Controller PWB check the voltage between P/J23 Pin 4 and the frame ground.
The voltage is 0.0VDC.
Y
N
Go to RAP
RAP 62 .
Check the voltage between P/J23 Pin 3 and frame ground. The voltage is 3.3 with the
Envelope Feeder No Paper Sensor de-actuated and 0.0VDC with the sensor actu-
ated.
Y
N
Switch the Printer power off and remove the Envelope Feeder. Check for continuity
between J418 (Envelope Connector Assembly) and P/J23 Pin 3 on the Print Engine
Controller PWB. There is continuity between the pins.
Y
N
Remove the Front Cover (
REP 1.6 ) and the Front Left Cover ( REP 1.7 ). Check
for continuity between P/J41 Pin 5 on the Connector PWB and P/J23 Pin 3 on
the Print Engine Controller PWB. There is continuity between the two pins.
Y
N
Check the Connector Harness Assembly for proper connection and for
defective wires. Repair or replace if necessary. If Harness is in good con-
dition, replace the Connector PWB (
REP 9.7 ).
Replace the Envelope Connector Assembly ( REP 4.10 ).
Replace the Envelope Feeder PWB ( REP 13.3 ). If the problem persists, replace the
Envelope Feeder No Paper Sensor ( REP 13.10 ).
Replace the Print Engine Controller PWB ( REP 9.3 ).
Replace the Print Engine Controller PWB ( REP 9.3 ).