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2.1.9 Power Supply Circuit
This power supply circuit supplies the +5VDC, +8VDC, +40VDC, 10VAC.
SW
Fuse
Noise
filter
circuit
Trans-
former
Control Board
Rectifier
Rectifier
Regulation
Circuit
+40V
+8V
+5V
AC10V
The uses of output voltages and signals are described below.
Voltage/signal Use
+5V Logic IC/LED drive voltage
+8V Serial interface line voltage and SP motor driver
+ 40V Printhead, LF motor drive voltage, SP motor drive voltage
AC 10V Option board