Saturn S300 Series Service Manual page 33

Equipment Description and Component Identification
23. Ink Control Unit（ICU）
ICU receives data from edit control unit and completes the control
of ink circulation, ink level and viscosity inspection.
24. Print Control Unit（PCU）
PCU receives data from edit control unit to control print signal
(step wave, sine wave, high voltage, etc.) and return data to edit
control unit.
25. Print Drive Unit（PDU）
PCU receives data from print control unit and output step wave,
sine wave, high voltage to the print head to realize printing.
26. Input/Output Unit（IOU）
IOU provides various connectors to synchronizer, magic eye and
U disc to enhance the reliability.
27. Edit Control Unit（ECU）
ECU realizes the communication between printer and human;
completes edit, store and download of message, setting of data
and control of printing.
28. Main Power
The main power supply transfers 110/220vac to low voltage direct
current power for PCB control and dual high voltage power.
29. High Voltage Power
The high voltage power supplies 900V to 6000V high voltage
power for printing.
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