Finisher/Punch Power Supply - Xerox Paser 7400 Service Manual

Finisher/Punch Power Supply

When the printer is powered ON and connected to the finisher, it supplies the Finisher
Controller Board with two channels of 24 VDC: one for the motors and clutches, and
the other for conversion into 5 VDC in the regulator IC (IC1) of the Finisher
Controller Board. The 5 VDC supplies power to sensors and ICs on the printed circuit
boards. If the system configuration includes a punch unit (option), power is also
supplied to the Punch Controller Board.
24VP
Host
Machine
24VL
Finisher
Controller PCB
Theory of Operation
Joint Switch (JS)
Circuit Breaker (CB1)
Finisher
Controller PCB
Regulator IC
(IC1)
24 V
Punch Controller PCB
5 V
Front Door
Switch
Stapler Safety
(FDSW) Switch (SSS)
24 V
Motor
24 V
Motor
24 V
Clutch
5 V
Sensor
5 V
Logic System
Punch Controller PCB
(Puncher Unit)
24 V
Motors
5 V
Sensors
5 V
Logic System
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