Board Structure; Block Diagram - Ricoh B291 Service Manual

6.2 BOARD STRUCTURE

6.2.1 BLOCK DIAGRAM

H D D
S D R A M F-R O M
8M B 2M B
Sync． SC I
V LC D C
O P U
C C D LV D S
LM 98513
4. 7μm D ri ver
D A C P /H
G A S B U P
S B U
A D F
A K S
Exposure
I nverter
Lam p
M D B
S can.
D ri ver
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 (SD cards) on
the controller board. The BICU and FCU are connected to the controller via a PCI
bus.
SM
CÓPIA NÃO CONTROLADA
R I O 3
O pti on×2
C P U N V R A M
64 M B
R M 7035C
S D
C A R D
P C I
A SI C
A TA 100
T rum pet
R A M -D I M M
SSTL2
R A M -D I M M
SM B us
S EEP
R TC S S C G
R O M (1kbi t)
M B
S I B
C D I C A
G A V D
I 2 C
T ype-R
LV D C
R I 1001A
LV D S
R eci ver
EEP R O M
S R A M
eS O C
I 2 C
256kB
(m 66485)
H 8/
3297
U A R T
U A R T
D C -D C
C onv.
D ri ver
eI O eI O
5V 12V
Sync. SC I
S ensor
P . P .
1bi n
A cyuator
Tray
B 408
6-5
CÓPIA NÃO CONTROLADA
BOARD STRUCTURE
・ I EEE1284 ・ W i rel ess LA N
・ M LB 2 ・ B l uetooth
G S
R el ay
P ri m ary
C om m .
LS D
C i rcui t
S P
FA M E
S D
D R V
C A R D
A SI C
P H Y
S haker
M B U
U S B 2. 0
P ri m ary
FR O M
B ackup
D I M M S R A M R eset
O pti on
FA C E3
S A F
B A C K
U P
FC U I /F
C ontrol l er
U A R T
U A R T
I C I B
B I C U
LD B
P M A C A
LD
P M A C A LD
P ol ygon
m otor
FR O M
+5V E
+5V
2M B
+24V
+12V
-12V
D ul ex
Feed
U ni t
M otor
Fuser
U ni t
LD
M ai n Fuser
R otate
M otor M otor
B ypath
Tray
U A R T
LC T
I O B
U A R T
B A N K
U A R T
Fi ni sher
B 545 B 546
B291/B295/B296/B297
C i rcui t
TEL
R G U
Ext. Tel
Li ne
D TM F
R ec,
S i G 4-A S D
C C U D R V
or
S G 3-N EO
C C U I F
S G 3-N EO
EX S R A M
(Expan. ）
O pti on
G W FC U 3
+5V
N R S
M K 1I /F
+5V E
D C -D C
A C -D C
1
D C -D C
2
A C
D ri ve
P SU
B195D920.WMF