BCU (Printer Model Only)

The BCU board (engine board) controls the following functions:

  • Engine sequence
  • Controller interface
Controller Board (Printer Model Only)

The Controller board controls the following functions:

  • SDRAM
  • 10Base-T/100Base-Tx/Giga Ethernet
  • USB2.0
  • NVRAM
  • Operation panel interface
SCB (MF Model Only)

In the MF model, the functions of the engine board and the controller board of the previous machine have been brought together and mounted on a single board, the SCB (System Controller Board). Combining these two functions on one board reduces the number of controller SC errors generated by communication problems between the two separate boards of the previous model.

The SCB board controls the following functions:

  • Engine sequence
  • SDRAM
  • 10Base-T/100Base-Tx/Giga Ethernet
  • USB2.0
  • NVRAM
  • Operation panel interface
PSU (Power Supply Unit)

Generates DC power from the wall socket AC power supply, and supplies it to each control circuit

HVPS (High-Voltage Power Supply)

Generates the high-voltage power required for process control.

FCU

Controls the fax program.

NFC Board

Controls the interface with the NFC module.

DC Switch

Controls the on/off operation of the DC power supply.

Toner End Sensor (Toner End Detection Board)

Detects whether the toner has run out.

SBU (Sensor Board Unit) (MF Model Only)

Converts the image reflected from the front side of the originals into digital image signals, then transmits them to the SCB.