Rap 48 Exit Sensor; Rap 49 Exit Motor - Xerox N2125N - DocuPrint B/W Laser Printer Service Manual

RAP 48 Exit Sensor

Procedure
Open the printer Rear Cover. Remove the Duplex Module, if installed. Open the Fuser Access
Cover and check the Exit Sensor Actuator. Check that the actuator moves smoothly and is not
broken. Make sure the actuator flag blocks the Exit Sensor when the access cover is closed.
The actuator is in good condition and moves smoothly.
Y N
Replace the Fuser Assembly (REP
Enter Diagnostics and select Component Test. Scroll to Sensor Input test and press Enter [4].
Open the rear cover and open the Fuser Access Cover. Use a folded piece of paper to block
and unblock the Fuser Exit Sensor. The number on the LCD increments each time you
block and unblock the sensor.
Y N
Switch the printer power off. Remove the Left Interface Cover
1.2), and the Left Plate Assembly
Controller PWB. Switch the printer power on. Check the voltage between P/J27 pin 3 and
frame ground. The voltage is 3.3VDC.
Y N
Check the voltage between P/J28 pin 10 and frame ground. The voltage is 3.3VDC.
Y N
Replace the LVPS (REP
Replace the Print Engine Controller PWB
Switch the printer power off. Reconnect P/J27 to the Print Engine Controller PWB. Switch
the printer power on. Measure the voltage between P/J27 pin 5 and frame ground as you
block and unblock the Fuser Exit Sensor. The voltage is 3.3VDC when the Fuser Exit
Sensor is blocked and 0.0VDC when unblocked.
Y N
Replace the Fuser Assembly (REP
Replace the Print Engine Controller PWB
Replace the Print Engine Controller PWB
Status Indicator Repair Analysis Procedures
RAP 48 , RAP 49
6.2).
(REP 1.1), Left Cover
(REP 1.11). Disconnect P/J27 from the Print Engine
9.5).
(REP 9.3).
6.2).
(REP 9.3).
(REP 9.3).

RAP 49 Exit Motor

Procedure
Switch the printer power off. Open the Rear Cover and manually rotate the Exit Chute Assem-
bly. The Exit Chute rotates without binding.
Y N
Remove the Exit Chute Assembly
(PL 7.1).
Enter diagnostics and select Component Test. Scroll to Exit Motor Fwd Operation. Open the
Rear Cover and cheat the Rear Cover Interlock. Press the Enter Key. The Exit Motor rotates.
Y N
Switch the printer power off. Remove the Left Interface Cover
1.2), and the Left Plate Assembly
Controller PWB. On the disconnected plug, check the resistance between pins 1 and 2,
(REP pins 1 and 3, pins 1 and 4, and between pins 1 and 5. All readings are 25 to 35 ohms.
Y N
Replace the Exit Motor
Replace the Print Engine Controller PWB
Press the [0] key to stop the test. Scroll to Exit Motor Rev H and press Enter. The Exit Motor
runs in reverse at high speed.
Y N
Switch the printer power off. Remove the Left Interface Cover
1.2), and the Left Plate Assembly
Controller PWB. On the disconnected plug, check the resistance between pins 1 and 2,
pins 1 and 3, pins 1 and 4, and between pins 1 and 5. All readings are 25 to 35 ohms.
Y N
Replace the Exit Motor
Replace the Print Engine Controller PWB
Press the [0] key to stop the test. Scroll to Exit Motor Rev L and press Enter. The Exit Motor
runs in reverse at low speed.
Y N
Switch the printer power off. Remove the Left Interface Cover
1.2), and the Left Plate Assembly
Controller PWB. On the disconnected plug, check the resistance between pins 1 and 2,
pins 1 and 3, pins 1 and 4, and between pins 1 and 5. All readings are 25 to 35 ohms.
Y N
Replace the Exit Motor
Replace the Print Engine Controller PWB
Replace the Print Engine Controller PWB
02/2000
2-42
(REP 6.4). Repair or replace components as necessary
(REP 1.1), Left Cover
(REP 1.11). Disconnect P/J32 from the Print Engine
(REP 6.5).
(REP 9.3).
(REP 1.1), Left Cover
(REP 1.11). Disconnect P/J32 from the Print Engine
(REP 6.5).
(REP 9.3).
(REP 1.1), Left Cover
(REP 1.11). Disconnect P/J32 from the Print Engine
(REP 6.5).
(REP 9.3).
(REP 9.3).
(REP
(REP
(REP
Initial Issue
DocuPrint N2125