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

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02/2000
2-35 DocuPrint N2125
RAP 35 , RAP 36
Status Indicator Repair Analysis Procedures Initial Issue
RAP 35 Standard Bin Stack Full Sensor
Procedure
Enter Diagnostics and select Component Test. Scroll to Sensor Input test and press Enter.
Actuate and deactuate the Stack Full Sensor Actuator. The number on the LCD increments
each time you press and release the actuator.
Y
N
Visually inspect the Stack Full Sensor Actuator. The actuator moves freely and is in
good condition (not broken or damaged).
Y
N
Replace the Stack Full Actuator (
REP 6.8 ).
Switch the printer power off. Remove the Left Interface Cover ( REP 1.1 ), Left Cover ( REP
1.2 ), and Left Plate ( REP 1.11 ). Disconnect P/J31 from the Print Engine Controller PWB.
Switch the printer power on. On the Print Engine Controller PWB, measure the voltage
between P31 pin 1 and frame ground. The voltage is +3.3VDC.
Y
N
On the Print Engine Controller PWB, measure the voltage between P/J28 pin 10 and
frame ground. The voltage is +3.3VDC.
Y
N
Replace the LVPS (
REP 9.5 ).
Replace the Print Engine Controller PWB ( REP 9.3 ).
Switch the printer power off. Reconnect P/J31 to the Print Engine Controller PWB. Switch
the printer power on. On the Print Engine Controller PWB, measure the voltage between
P/J31 pin 3 and frame ground. There is +3.3VDC between P/J31 pin 3 and frame
ground when the Stack Full Sensor is deactuated and 0.0VDC when actuated.
Y
N
Replace the Stack Full Sensor (
REP 6.6 ).
Replace the Print Engine Controller PWB ( REP 9.3 ).
Replace the Print Engine Controller PWB ( REP 9.3 ).
RAP 36 Print Cartridge Sensor Assembly
Procedure
Open the Front Cover and remove the Print Cartridge. Inspect the tab on the top of the Print
Cartridge that actuates the Print Cartridge Sensor Assembly. The tab on the Print Cartridge
is intact.
Y
N
Replace the Print Cartridge (
PL 8.1 ).
Press and release the Print Cartridge Sensor Assembly Actuator. The Print Cartridge Sen-
sor Assembly Actuator lever moves smoothly.
Y
N
Replace the Print Cartridge Sensor Assembly (
REP 7.3 ).
Enter diagnostics and select Component Test. Scroll to Sensor Input test and press Enter.
Manually actuate the Print Cartridge Sensor Assembly 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 Left Plate Assembly ( REP 1.11 ). Switch the printer power on. On the print
Engine Controller PWB, check the voltage between P/J25 pin 4 and frame ground. The
voltage is +5.0VDC.
Y
N
Replace the Print Engine Controller PWB (
REP 9.3 ).
Check the voltage between P/J25 pin 3 and frame ground. Manually actuate and deactu-
ate the Print Cartridge Sensor Assembly. The voltage is 0.0VDC with the Print Car-
tridge Sensor Assembly deactuated and +5.0VDC with the sensor actuated.
Y
N
Replace the Print Cartridge Sensor Assembly together with the harness (
REP 7.3 ).
Check the voltage between P/J25 pin 2 and frame ground. Manually actuate and deactu-
ate the Print Cartridge Sensor Assembly. The voltage is 3.3VDC with the Print Car-
tridge Sensor Assembly deactuated and 0.0VDC with the sensor actuated.
Y
N
Replace the Print Cartridge Sensor Assembly together with the harness (
REP 7.3 ).
Replace the Print Engine Controller PWB ( REP 9.3 ).
Replace the Print Engine Controller PWB ( REP 9.3 ).
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