Rap 20 Fan Failure Power Off Now (U) - Xerox N2125N - DocuPrint B/W Laser Printer Service Manual

RAP 20 Fan Failure Power Off Now (U5)
The printer is detecting incorrect fan rotation.
Procedure
Switch the printer power off, then on. The Fan rotates when the main power is switched on.
Y N
Switch the printer power off. Remove the Left Interface Cover
1.2), and Left Plate Assembly (REP
check the voltage between P/J283 pin 1 and frame ground. The voltage is +19VDC.
Y N
Check the voltage between P/J281 pin 13 and frame ground. The
+0.8VDC.
Y N
Replace the Print Engine Controller PWB
Replace the LVPS (REP 9.5).
Replace the Fan Assembly (REP 9.1).
Enter Diagnostics and select Component Test. Scroll to Fan Motor Hi and press Enter. The
Fan rotates at high speed.
Y N
Switch the printer power off. Remove the Left Interface Cover
1.2), and Left Plate Assembly (REP
Motor Hi and press Enter. On the LVPS, check the voltage between P/J283 pin 1 and
frame ground. The voltage is +21.5VDC.
Y N
Press the Online [0] key. Check the voltage between P/J281 pin 11 and frame
ground. Press the Enter key. The voltage changes from 0.8VDC to 0.0VDC when
you press the Enter key.
Y N
Replace the Print Engine Controller PWB
Replace the LVPS (REP 9.5).
Replace the Fan Assembly (REP 9.1).
Switch the printer power off. Remove the Left Interface Cover
and Left Plate Assembly (REP 1.11). Enter Diagnostics and select Component Test. On the
LVPS, check the voltage between P/J283 pin 2 and frame ground. The voltage is less than
1.0VDC.
Y N
Replace the Fan Assembly (REP 9.1).
Replace the Print Engine Controller PWB
Initial Issue
DocuPrint N2125
(REP 1.1), Left Cover
1.11). Switch the printer power on. On the LVPS,
voltage
(REP 9.3).
(REP 1.1), Left Cover
1.11). Switch the printer power on. Scroll to Fan
(REP 9.3).
(REP 1.1), Left Cover
(REP 9.3).
RAP 21 Low Paper Tray #
Paper stack in the Paper Tray Assembly is below 50 ±30 sheets.
Procedure
Insert a full Tray Assembly in the affected position. The Error Message reappears.
Y N
(REP Problem solved.
Remove the affected tray Assembly. Push up the Low Paper Actuator manually and then
release. The Low Paper Actuator moves smoothly.
is Y N
Repair or replace the Low Paper Sensor Assembly
Enter Diagnostics and select Component Test. Scroll to Sensor Input test and press Enter.
Press the Low Paper Actuator manually and then release. The LCD increments the counter
each time you press and release the Actuator.
Y N
Check the wiring associated with the specific Low Paper Sensor. If ok, replace the Low
Paper Sensor (REP 3.5/REP
Replace the Print Engine Controller PWB
(REP
(REP 1.2),
02/2000
2-25
manuals4you.com manuals4you.com
(REP 3.5/REP 11.14).
11.14).
(REP 9.3).
Status Indicator Repair Analysis Procedures
RAP 20 , RAP 21