Rap 17 U2: Ros Fail / Power Off Then On; Rap 18 U4: Fuser Failure / Power Off / On - Xerox DocuPrint N2025 Service Manual

RAP 17 U2: ROS Fail / Power Off Then On

There is a problem with the Laser Assembly.
Procedure
Enter Diagnostics and select NVM Config (password 0734). Check the value for Resolution
and for Laser Density. The value for Resolution is "D" and for Laser Power is "4".
Y N
Replace the Print Engine Controller PWB (REP 8.5).
Select Component Test then ROS Motor. You can hear the Scanner Motor spin up.
Y N
Go to RAP 30.
Switch the printer power off. Remove the Left Side Cover (REP 1.1). Remove the Print Engine
Controller PWB Cover (REP 8.5). Disconnect P/J11 from the Print Engine Controller PWB.
Switch the printer power on. Check the voltage between P11-7 and P11-8 on the Print Engine
Controller PWB. There is +5.0 VDC between P11-7 and P11-8.
Y N
Check the voltage between P21-3 and P/J21-1 on the Print Engine Controller PWB.
There is +5.0 VDC between P21-3 and P/J21-1.
Y N
Go to RAP 28.
Go to RAP 13.
Go to RAP 30.
Initial Issue
DocuPrint N2025/N2825

RAP 18 U4: Fuser Failure / Power Off / On

There is a problem with the Fuser Assembly.
Procedure
Switch the printer power off. Wait a few minutes, then switch the printer power on. The
Error Code reappears.
Y N
Run 25 to 30 test prints. The U4 Error code reappears.
Y N
Problem solved
Go to RAP 31.
Go to RAP 31.
02/2000
2-23
Status Indicator Repair Analysis Procedures
RAP 17, RAP 18
U4