EGB (Engine Board)

This controls the Engine, the controller interface, image processing, MUSIC (Mirror Unit for Skew and Interval Correction), input/output, interfaces with the optional units, and the operation panel. MUSIC is also called Automatic Line Position Adjustment.

CTL (Controller Board)

This controls the interface between the OPU and EGB, and applications. The controller connects to the EGB through the PCI Bus (Peripheral Component

Interconnect Bus).

PSU (Power Supply Unit)

This unit supplies the DC voltages to the machine.

HVP (High Voltage Power supply)

This unit converts DC voltage to high potential supplies.

New PCDU Detection Board

This unit detects it whether PCDU is new and whether each PCDU has been set.

SD/USB Board

Connects the USB memory and SD card.

ID Chip Relay Board

Relays the data from the ID Chips of the Toner cartridges.

DC Switch

Controls On/Off the DC voltage supply

Toner End Detection Board

This unit detects the amount of remaining toner.