Rap 7.32 Electrical Noise - Xerox DocuPrint N24 Service Manual

RAP 7.32 Electrical Noise

1 Check if there is other electrical equipment, such as electrical generators, radio transmitters, or
devices using electrical motors, within ten feet of the printer. Shut off the other electrical
equipment or relocate the printer at least twenty feet away from the other devices. The Electrical
Noise problem is still present.
Y N
|
Permanently relocate either the printer or the problem device.
2 Check the AC wall outlet. The AC wall outlet is correctly wired and grounded
Y N
|
Have the customer correct the wiring problem.
3 If the printer has options installed, such as Duplex Unit or the High Capacity Feeder, remove
each option one at a time, and see how the printer operates without that option installed. The
Electrical Noise problem is still present.
Y N
|
Go the Section 8 Options and troubleshoot the option that is having the problem.
NOTE: Steps 4 through 11 attempt to find a faulty printer component that may be generating electrical
noise. If replacing a component does not solve the problem, reinstall the old component before
moving on to the next step.
4 Replace the EP Cartridge (PL 7.2). The Electrical Noise problem is still present.
Y N
|
Problem solved.
5 Replace the Main Switch (REP 4.10.1). The Electrical Noise problem is still present.
Y N
|
Problem solved.
6 Replace the HVPS Assembly (REP 4.10.4). The Electrical Noise problem is still present.
Y N
|
Problem solved.
7 Replace the AC Driver PWB (REP 4.10.3). The Electrical Noise problem is still present.
Y N
|
Problem solved.
8 Replace the LVPS Assembly (REP 4.10.2). The Electrical Noise problem is still present.
Y N
|
Problem solved.
9 Replace the Fuser Assembly (REP 4.7.1). The Electrical Noise problem is still present.
Y N
|
Problem solved.
10 Replace the Printer Engine Controller PWB (REP 4.10.6). The Electrical Noise problem is still
present.
Y N
|
Problem solved.
Repair Analysis Procedures (RAP)
3/99
7-42 DocuPrint N24, N32 and N40 Service Manual