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Xerox DocuPrint N17 Service Manual
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Repair Analysis Procedures (RAPs)
7.4.21 Toner Sensor Assembly Failure
1 There is +24VDC between P17-7 and P17-9 on the LVPS.
Y: Go to step 2.
N:
Go to RAP 7.4.7 Low Voltage Power Supply (LVPS) Assembly Failure (+24VDC).
2 There is +5VDC between P17-8 and P17-9 on the LVPS.
Y: Go to step 4.
N: Go to step 3.
3 There is continuity between P/J13 on the Print Engine Controller and P/J11 on the LVPS; P/J25
on the Print Engine Controller and P/J12 on the LVPS.
Y: Replace the Print Engine Controller.
N: Replace the LVPS Harness Assembly.
4 The voltage between P/J17-8 and P/J25-5 is 0VDC with the EP Cartridge installed (or sufficient
toner present), and the voltage is +5VDC with the EP Cartridge removed (or no toner present).
NOTE: Keep the Front Cover Assembly closed while performing this.
Y: Replace the Print Engine Controller.
N: Go to step 5.
5 There is continuity between J17 and J128.
Y: Replace the Toner Sensor Assembly.
N: Replace the Registration Harness Assembly.
NOTE: Disconnect P/J15 from the Print Engine Controller and perform the analysis.
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Содержание DocuPrint N17
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