Ricoh D014 - Boards

Boards
SM 6-5 D014/D015/D078/D079
Detailed
Descriptions
6.3 BOARDS
6.3.1 OVERVIEW OF IMPORTANT COMPONENTS
VBCU (Base Engine and Image Control Unit)
The VBCU is the main control board. It combines the functions of the BCU and IOB.
The VBCU controls these BCU (Base Control Unit) functions:
 Engine sequence control (all sensors, motors, fusing temperature control circuits)
 Image processing control (on the IPU)
 Scanning control
 GW controller interface
 Peripheral timing control
The VBCU also controls these IOB (I/O Control Board) functions:
 Input and output ports for all sensors, motors, solenoids
 All drivers
 High voltage power supply
 Analog input signals. Converts analog data to 10-bit digital data. The CPU on the
VBCU reads this data.
Controller
The GW controller board controls all the optional applications. It contains the GW
architecture ASICs, and connects to the VBCU and PCI interface. The controller board also
has two SD card sockets. The SD card slots are use for:
 Installing holding optional applications (Printer/Scanner, PostScript3 and other options)
 Engine and operational panel firmware updates
 Moving an application from one SD card to another with SP5873-1.
SBU (Sensor Board Unit)
The SBU:
 Receives analog signals from the CCD and converts them to digital signals.
 Sends serial data to the VBCU.
 Sends signals from the main CPU to the SIOB, to control the scanner components.
 Sends digital data to the IPU.
SIOB (Scanner I/O Board)
This board controls the scanner motor and all the sensors in the scanner unit. The CPU
controls this board.
LDB (Laser Diode Drive Board)
This board contains the driver for the laser diodes.
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA