Ricoh B234 - Board Structure; Block Diagram

Board Structure
SM 6-39 B234/B235/B236/D101/D102/D103
Detailed
Descriptions
6.8 BOARD STRUCTURE
6.8.1 BLOCK DIAGRAM
Transfer Unit
SIB
OPU
IPU
APS
PSU ENGINE
SBU
Color
CCD
MCU
B832 or B834
B833
Operation
Panel
PSU Ctrl
Noise
Filter
Breaker
Main
SW
CPU
MEM-P
(Opt)
AC
Drive
Fusing Unit
Pwr Relay
RAPI
32EX
T
TRC1
TRC2
TRC3
RA
NVRAM
MEM-P
(256MB)
MEM-C
(Opt)
MEM-C
(256MB)
BCU
B838
Xenon Lamps
x2
CPUバス
Zero-Cross
Scanner Heater
Transfer Heater
Bank Heaters 1,2
LCT Heater
Lamp 1
Lamp 2
Lamp 3
B835
B830
Front
Door SW
Trays 1, 2, 3
Image Position Sensors
Output Unit
Duplex Unit
Toner Bank
Fusing Unit (Lower)
Dev. Unit
Drum Unit
SD CARD
B831
B660 B836
MLB3
（PCI_Option）
Slot A1
Slot A2
Slot A3
EFI
Copier CONN
USB Host
NIC/USB
Giga/USB
1394
802.11b
1284
Cumin-M
Bluetooth
CNB
LDB
IOB
MB
Controller
HDD
HDD
B234D864.WMF