In the DC power supply unit, each DC power supply is
generated from wall outlet and is supplied to each load.
Output Voltage (V) Main Uses
(A) +5 Power supply for each PCB IC and operation unit PCB.
(B) +5 Power supply for each sensor and eraser LEDs.
(C) +12 Power supply for each sensor and operational amplifier.
(D) +12 For operational amplifier.
(E) +24 Power supply for each dc motor (except OPC cleaning, toner
supply, and agitator motors), solenoid, relay and each power
pack control line.
(F) +24 Power supply for paper feed, registration, OPC cleaning, toner
supply, and agitator motors.
(K) +40 Main motor.
(H) +24 Power source for each power pack.
Note: GND is common (A) to (K). GND of output (H) is GND (P).
NOTE
Protection from output shorting
• When output (A) shorts, all outputs stop,
except output (H).
When one output from (B) to (K) shorts, output from (B)
to (K) stop, and only (A) continues.
DC Power Destinations 1 July 1994
3-2
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