Finisher Principles Of Operation; Finisher Power - Xerox DocuPrint N24 Service Manual

8.5.6 Finisher Principles of Operation

8.5.6.1 Finisher Power

The Finisher requires +5VDC and +24VDC for normal operation. The Finisher receives this voltage from
the Printer Engine Controller PWB in the base engine.
The printer AC power cord plugs into a grounded AC wall outlet. The cord transmits AC line voltage to
the Noise Filter PWB. The Noise Filter smooths the AC voltage and sends it to the Main Power Switch.
Switching on the Main Power Switch applies AC voltage to the Low Voltage Power Supply (LVPS) PWB.
The LVPS converts the Line Voltage to regulated +5VDC and +24VDC voltages. The LVPS sends these
voltages to the Printer Engine Controller PWB. The Printer Engine Controller sends these two DC volt-
ages to the Finisher PWB.
The Finisher PWB uses these voltages to run internal logic, sensors, solenoids, and the Finisher Motors.
The Base Engine also sends filtered Line Voltage to the Finisher - LVPS PWB. The Finisher-LVPS con-
verts this Line Voltage to regulated +5VDC and +24DC for additional Finisher uses. The Finisher - LVPS
+24VDC output is controlled by the Front Cover Interlock, the Top Cover Interlock, and the Compiler
Cover Interlock switches. The +24VDC out of the Finisher - LVPS is cut whenever any of the Finisher
doors are opened.
Finisher Power Components
1 Finisher PWB
Receives +5VDC and +24VDC from the Printer Engine Controller PWB and distributes the
voltages to various Finisher components.
2 Finisher - LVPS
Receives Line Voltage from the base engine, converts it into +5VDC and +24VDC, and
distributes the voltages to various Finisher components.
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