Board Structure; Block Diagram - Ricoh B079 Service Manual

6.2 BOARD STRUCTURE

6.2.1 BLOCK DIAGRAM

O P U
SBU
A RDF
Exposure
INV ERT ER
Lam p
HP Sensor
A PS Sensors
Platen Cov er
Sensor
Scanner
M DB
M otor
This machine uses the GW (Grand Workware) architecture, which allows the copier
to be expanded as an MFP by installing simple modular components (ROM
DIMMs) on the controller board. The BICU and FCU are connected to the controller
via a PCI bus.
Controller (Main Board)
Takes charge of controlling memory and all peripheral devices.
BICU (Base Engine and Image Control Unit)
This is the engine control board. It controls the following functions.
• Engine sequence
• Timing control for peripherals
• Image processing, video control
SM
CÓPIA NÃO CONTROLADA
IC Card
Co ntroller
M o th er Bo ard
BIC U
S IB
H VPS
Sensors
6-5
CÓPIA NÃO CONTROLADA
BOARD STRUCTURE
HD D
FC U
Poly.
M irror
M otor
LDDR
F using/
M ain
Ex it
M otor
M otor
LD
IO B
1-Bin Tray F inisher Duplex
Fusing Unit
PS U
PF /Dev .
M otor
P aper Tray
LCT
By-Pass
Sensors
B079D900.WMF
B079/B082