42113901TH01 Rev.3 30 /
Oki Data CONFIDENTIAL
SW
AC Fuse
Noise
filter
circuit
Trans-
former
Power supply board
Control board
Rectifier
Converter
Rectifier
Regulation
Circuit
+50V
+12V
+5V
+5V
-8V
Converter +3.3V
+50V
Converter +42V
The uses of output voltages and signals are described below.
Voltage/signal Use
+3.3V USB Controller drive
+5V Logic IC / LED drive
+12V Serial interface line, FAN motor drive
+42V LF motor / SP motor drive
+50V Printhead, Option CSF motor drive
-8V Serial interface line
2.1.9 Power Supply Circuit
This power supply circuit supplies the +3.3VDC, +5VDC, +12VDC, +42VDC, +50VDC, -8VDC.
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