Rap 32 Registration Sensor - Xerox DocuPrint N2125 Service Manual

A
Reconnect P/J27. Measure the voltage on the LVPS between P/J281 pin 12 and frame ground
as you switch the printer power on. The voltage is 0.0VDC during fuser warm up, then
changes to 2.8VDC.
Y N
Replace the Print Engine Controller PWB
Replace the LVPS (REP 9.5).
Initial Issue
DocuPrint N2125
(REP 9.3).

RAP 32 Registration Sensor

Procedure
Enter Diagnostics and select Component Test. Scroll to Sensor Input test and press Enter.
Actuate and deactuate the Registration Sensor. The number on the LCD increments each
time you press and release the actuator.
Y N
The actuator moves freely and is in good condition (not broken or damaged).
Y N
Replace the Registration Actuator
Switch the printer power off. Remove the Left Interface Cover
1.2), and the Left Plate Assembly
Engine Controller PWB, measure the voltage between P/J23 pin 11 and frame ground.
The voltage is +3.3VDC with the Registration Sensor deactuated and 0.0VDC with
the Registration Sensor actuated.
Y N
Switch the printer power off. Remove the Left Front Cover
printer power on. On the Connector PWB, measure the voltage between P/J43 pin 5
and frame ground. The voltage is +3.3VDC with the Registration Sensor deactu-
ated and 0.0VDC with the Registration Sensor actuated.
Y N
Check the voltage between P/J43 pin 3 and frame ground. The
1.2VDC.
Y N
Replace the Print Engine Controller PWB
Replace the Registration Sensor
Replace the Connector PWB
Replace the Print Engine Controller PWB
It appears that the Registration Sensor is working correctly. If a problem persists, replace the
Print Engine Controller PWB (REP
02/2000
2-33
(REP 4.2).
(REP 1.1), Left Cover
(REP 1.11). Switch the printer power on. On the Print
(REP
(REP 9.3).
(REP 5.4).
(REP 9.7).
(REP 9.3).
9.3).
Status Indicator Repair Analysis Procedures
RAP 31 , RAP 32
(REP
1.7). Switch the
voltage is