Rap 7.27 Inoperative Printer - Xerox DocuPrint N24 Service Manual

RAP 7.27 Inoperative Printer

1 Inspect the AC Power Cord. The AC Power Cord plugged into the back of the printer, the other
end plugged into an AC wall outlet, and the GFI is in the ON (operational) state.
Y N
|
Plug the AC Power Cord into the printer, into the AC wall outlet, or reset the GFI.
2 Check the voltage at the AC wall outlet. There is approximately 110VAC (or 220VAC if the printer
is the 220VAC model) at the AC wall outlet.
Y N
|
Notify the customer of the power problem.
3 Switch the main power off. Remove the Upper Rear Cover Assembly (REP 4.1.3). Switch the
main power on and measure the voltage between J400-7 and FG, and between J400-8 and FG
on the Printer Engine Controller PWB. There is +5VDC between J400-7 and FG, and +5VDC
between J400-8 and FG.
Y N
|
Go to step 6.
4 Measure the voltage between J400-5 and FG (6.3.3), and between J400-6 and FG on the Printer
Engine Controller PWB (REP 4.10.6). There is +24VDC between J400-5 and FG, and +24VDC
between J400-6 and FG.
Y N
|
Replace the LVPS (REP 4.10.2).
5 Go to RAP 7.23.
6 Measure the voltage between J19-1 and J19-3 (PL 11.1)on the Noise Filter PWB. There is
110VAC (or 220VAC if the printer is the 220VAC model) between J19-1 and J19-3.
Y N
|
Go to step 10.
7 Measure the voltage between J20-1 and J20-3 (6.3.1)on the AC Driver PWB. There is 110VAC
(or 220VAC if the printer is the 220VAC model) between J20-1 and J20-3.
Y N
|
Replace the Main Switch (REP 4.10.1).
8 Replace the LVPS Assembly (REP 4.10.2).
9 Switch the printer power off. Disconnect the AC Power Cord from both the wall outlet and the rear
of the printer. Measure continuity between the ends of the Power Cord. Continuity is measured
on all terminals respectively.
Y N
|
Replace the Power Cord (PL 11.1).
10 There is continuity between the power inlet connector and FS5 and FS6 respectively.
Y N
|
Repair the Power Inlet Connector and wiring.
11 Replace the Noise Filter (REP 4.10.12).
Repair Analysis Procedures (RAP)
2/2000
7-36 DocuPrint N24, N32, N40, N3225, and N4025