Rap 30 Laser Assembly - Xerox DocuPrint N2025 Service Manual

RAP 30 Laser Assembly

Procedure
Enter Diagnostics and select Component Test. Scroll to ROS Motor and press Enter. You can
hear the ROS Motor spin up.
Y N
Switch the printer power off. Remove the Left Side Cover (REP 1.1) and remove the Print
Engine Controller PWB Cover (REP 8.5). Switch the printer power on. Measure the volt-
age between P/J11 pin 11 on the Print Engine Controller PWB and frame ground. The
voltage is 24.0 VDC.
Y N
Measure the voltage between P/J16 pin 9 on the Print Engine Controller PWB and
frame ground. The voltage is 24.0 VDC.
Y N
Replace the LVPS (REP 8.6).
Replace the Print Engine Controller PWB (REP 8.5).
Enter Diagnostics and select Component Test. Scroll to ROS Motor. Measure the voltage
between P/J11 pin 13 and frame ground. Press the Enter key. The voltage drops from
5.8 VDC to 0.6 VDC.
Y N
Replace the Print Engine Controller PWB (REP 8.5).
Replace the Laser Assembly (REP 7.1).
Switch the printer power off. Remove the Left Side Cover (REP 1.1) and the Print Engine Con-
troller PWB Cover (REP 8.5). Switch the printer power on. Check the voltage between P11 pin
8 and frame ground. There is +5.0VDC between P11 pin 8 and frame ground.
Y N
Measure the voltage between P/J21 pin 4 and frame ground. There
between P/J21 pin 4 and frame ground.
Y N
Measure the voltage between P/J21 pin 3 and frame ground. There
between P/J21 pin 3 and frame ground.
Y N
Switch the printer power off. Remove the Lower Rear Cover (REP 1.7). Discon-
nect P/J16 from the Print Engine Controller PWB. Measure the resistance
between pin 5 of the disconnected plug and P/J161 pin 10 on the LVPS. There
is continuity between P16 pin 5 and P/J161 pin 10.
Y N
Replace the Print Engine Controller Harness (PL 9.2).
Replace the LVPS (REP 8.6).
Replace the Print Engine Controller PWB (REP 8.5).
Measure the voltage between P/J21 pin 3 and frame ground. There
between P/J21 pin 3 and frame ground.
Y N
A B
Status Indicator Repair Analysis Procedures
RAP 30
A B
Open the Top Cover and remove the Print Cartridge. Inspect the tab on the left upper
portion of the Electronic Printing 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 Car-
tridge Sensor Assembly Actuator lever moves smoothly.
Y N
Replace the Print Cartridge Sensor Assembly (REP 7.4).
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
Replace the Print Cartridge Sensor Assembly together with the harness (REP
7.4).
Replace the Print Engine Controller PWB (REP 8.5).
Replace the Print Engine Controller PWB (REP 8.5).
Run a test print. On the Print Engine Controller PWB, measure the voltage between P/J11 pin
5 and frame ground and between P/J11 pin 6 and frame ground. The voltage on both pins
change from 0.0VDC to +1.1VDC then back to 0.0VDC.
Y N
Replace the Print Engine Controller PWB (REP 8.5).
Replace the Laser Assembly (REP 7.1). The problem still appears.
Y N
is +5.0VDC Problem solved.
Go to RAP 44.
is +5.0VDC
is +5.0VDC
02/2000
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Initial Issue
DocuPrint N2025/N2825