• 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. MUSIC is also called Automatic Line Position Adjustment.
  • Controller:
    This controls the interface between the OPU and EGB, wireless LAN (IEEE802.11b/g/n), ADF, Scanner unit and applications. The controller connects to the EGB through the PCI Bus (Peripheral Component Interconnect Bus).
  • LD Drive Board:
    This is the laser diode drive circuit board.
  • Memory DIMM: 256MB
    This is for more printer processing memory, and is also used for collation and for soft fonts.
  • OPU (Operation Panel Unit):
    This controls the display panel, the LED, and the keypad.