Ricoh A028 Service Training Manual page 165

1 July 1994
Output
(A)
(B)
(C)
(D)
(E)
(F)
(K)
(H)
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.
Voltage (V)
+5 Power supply for each PCB IC and operation unit PCB.
+5 Power supply for each sensor and eraser LEDs.
+12 Power supply for each sensor and operational amplifier.
+12 For operational amplifier.
+24 Power supply for each dc motor (except OPC cleaning, toner
supply, and agitator motors), solenoid, relay and each power
pack control line.
+24 Power supply for paper feed, registration, OPC cleaning, toner
supply, and agitator motors.
+40 Main motor.
+24 Power source for each power pack.
Main Uses
2-129
Electrical Control