Board Structure; Block Diagram - Ricoh B234 Service Manual

6.8

BOARD STRUCTURE

6.8.1

BLOCK DIAGRAM

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