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Xerox DocuPrint N17 Service Manual
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Repair Analysis Procedures (RAPs)
7.3.4 “Motor Failure” Power Off/On (U1)
1 The Main Motor Assembly is revolving when power comes on.
Y: Replace, in order, the Print Engine Controller, Main Motor Assembly.
N: Go to step 2.
2 Switch OFF the printer power and remove the Main Motor Assembly
(REP 4.10.1 Main Motor
Assembly) from the Drive Assembly. Rotate the Drive Assembly by hand. The Dirve Assembly is
binding.
Y: Repair or replace as necessary.
N: Reinstall the Main Motor Assembly, then go to step 3.
3 Grip the bottom mounting bracket of the Main Motor Assembly
(REP 4.10.1 Main Motor
Assembly) firmly. Switch ON the printer power. The Main Motor revolves.
CAUTION The initial thrust of the Main Motor turning on is quite strong and may surprise you if
you are not aware of it. Do not grip the Main Motor itself.
NOTE: The Main Motor can be made to revolve while producing IOT Test Prints by shorting together the
two male pins of P/J35 on the Print Engine Controller. P/J35 is a white plug located directly
above P/31, the Print Engine Controller to System Controller plug. The Main Drive Motor also
turns when the printer power is turned off and then on.
Y: Go to
RAP 7.4.19 Drive Assembly Failure.
N: Go to step 4.
4 There is +24VDC between P/J14-1 and P/J14-2 on the Print Engine Controller.
Y: Replace the Main Motor Assembly.
N: Go to step 5.
5 There is +24VDC between P/J25-1 and P/J25-4 on the Print Engine Controller.
Y: Replace the Print Engine Controller.
N: Go to step 6.
6 There is +24VDC between P/J12-1(LVPS) and P/J25-4 (Print Engine Controller).
Y: Replace the Print Engine Controller.
N: Replace the LVPS Assembly.
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