Ricoh SP 330DN Service Manual page 289

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USB 2.0
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Controller I/F
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Engine
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Image data processing
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LD (Laser Diode)
Main Board Specifications
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CPU: Quatro 5305-350MHz
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Memory: 128 MB
MF models:
Controls overall operation of the printer, mainly:
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SDRAM
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Ethernet (10BASE-T/100BASE-TX)
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USB 2.0
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Controller I/F
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Engine
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Image data processing
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LD (Laser Diode)
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Storing address data for FAX and scanner
Main Board Specifications
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CPU: Quatro 5310-400MHz
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Memory: 256 MB
LD Drive Board
Controls the LD (Laser Diode).
PSU
Supplies DC current to the machine. Also, contains the AC drive that controls the power supply
to the fusing lamps.
HVP
The high voltage power supply provides power to electrical components in the machine.
Generates the high voltage power supply required for the printing process.
FCU (Only for Fax Models)
Controls fax communication.
SM 7-47 M0C3/M0C4/M0C5/M0C6/M0C7
Electrical Components