41309401TH Rev.4
309 /
Figure A.5 (13/13) ISDN-G4 RX Picture Signal (OKIOFFICE87)
A4 image
sensor
300 dpi
PC1
PC2
S-motor
M
LED head
600 dpi
D-motor
M
Clutch
IOGA6 1/3
SCAN DMA
I/F
S-Motor Control
Printer Control
OST
-EX
Buf
fer 1024 bytes
Decoding
(RLE,TIFF
,ACC32)
200-300 dpi
converter
Smoothing
DR
V
.
DR
V
.
DR
V
.
LC821033
Image
Process
PC1
-8V
CN5
RT
C
+X
’tal
BA
T
CPU
SH7034
DRAM 8MB(16bit)
FLASH
1MB(16bit)
IOGA6 3/3
High-voltage
Control
IOGA6 2/3
Peripheral
control
IEEE1284
cont
CS decode
I/O port
DMA
2ch
R
TC serial I/F
X
’tal
20MHz
MPREQ
Bi-Centro I/F
V
.34
MODEM
33.6Kbp
X
’tal
OPE
CPU
Key switch
matrix
LCDC
DR
V
LCD
AMP
+24V 0V
+30V +5V -8V
Main
Switching
Power Supply
AC Output
ON/OFF
High-voltage
Power Supply
Manual feeder
sensor
W
rite sensor
Outlet sensor
T
oner end sensor
Cover open sensor
High-
voltage
Power
Supply
Speaker
NCU
G4
LED
OPE
T1,T
L1,L2
ISDN
LINE
alternative
(Low-voltage Power Supply Unit)
(High-voltage Power Supply Board)
SW
AC(120V/230V)
+24V
+5V
0V
-8V
ACON
Sub +5V
Sub +5V
RI
HOOK
Sub +5V
ACON
Heater
Thermisto
8PPM
SIG
IC13
CN3
CN1
CN14
CN12
+5V
CN13
CN2
L
VC161284
CPU1
IC2
IC2
IC2
FLS1
RAM1
IC22
IC8
CN9
IC6
CN10
CN4
IC9
IC7
TR505/TR506
CN1
1
CN7
CN6
CN8
IC3
R46
AMP
AIN
IC12
PC1
CN1
BA
T1
X1
X3
28.224MHz
S
R
CN3
NCU
INU/EN9
CN2
CN1
CN1
G4N
CN2
IC10
IC10
AMP
AMP
CN1
CN2
P6L
CN1
P2H
Sub-
power
Supply
SW
CN101
+30V
MPW1446(230V)
MPW1546(120V)
+3.3V
Reg
IC1
+3.3V
+5V
RST
IC16
POWRDY
D7-D0
D7-D0
DT7-DT0
PD7-PD0
LCD7-LCD0
: A circuit which conducted by sub-power supply unit
at the time of a standby state. (only 240V)
DT15-DT0
D15-D0
Summary of Contents for OKIFAX4550
Page 156: ...41309401TH Rev 4 156 Figure 4 2 Appearance of the OKIFAX4550 OKIOFFICE87...
Page 428: ...41309401TH Rev 4 428 SECTION 1 CABINET ASSEMBLY OKIFAX4550 OKIOFFICE87...
Page 431: ...41309401TH Rev 4 431 SECTION 2 UNIT PRINTER...
Page 433: ...41309401TH Rev 4 433 SECTION 3 UNIT 051 OPE PANEL...
Page 435: ...41309401TH Rev 4 435 SECTION 4 OPEPANEL OPERATION PANEL ASSEMBLY...
Page 437: ...41309401TH Rev 4 437 SECTION 5 FRAME ASSEMBLY SCANNER L...
Page 439: ...41309401TH Rev 4 439 SECTION 6 PLATE ASSEMBLY SCANNER B...
Page 441: ...41309401TH Rev 4 441 SECTION 7 PLATE ASSEMBLY SCANNER R...
Page 443: ...41309401TH Rev 4 443 SECTION 8 FRAME ASSEMBLY SCANNER U...
Page 445: ...41309401TH Rev 4 445 SECTION 9 COVER ASSEMBLY TOP...
Page 447: ...41309401TH Rev 4 447 SECTION 10 PLATE ASSEMBLY BASE...
Page 449: ...41309401TH Rev 4 449 SECTION 11 PRINTER BASE FRAME UNIT Heat assy...
Page 452: ...41309401TH Rev 4 452 SECTION 12 PRINTER HEAT ASSY...
Page 454: ...41309401TH Rev 4 454 SECTION 13 CABLES...
Page 457: ...41309401TH Rev 4 457 46F PCB Assy 1 9 41196601...
Page 466: ...41309401TH Rev 4 466 R46 PCB Assy 1 10 41033201...
Page 476: ...41309401TH Rev 4 476 04W PCB Assy 1 3 40071401...
Page 479: ...41309401TH Rev 4 479 EN9 PCB Assy 1 6 41144301...
Page 485: ...41309401TH Rev 4 485 INU PCB Assy 41144501 US 1 4 41144502 INT 1 5...
Page 493: ...41309401TH Rev 4 493 MPW1546 120V PCB Assy 1 5 SIPS1303...
Page 498: ...41309401TH Rev 4 498 MPW1446 230V PCB Assy 1 6 SIPS1302...
Page 504: ...41309401TH Rev 4 504 P2H PCB Assy 1 4 40599101...
Page 508: ...41309401TH Rev 4 508 P6L PCB Assy 1 3 40386701...
Page 511: ...41309401TH Rev 4 511 G4N PCB Assy 1 5 41033701...
Page 585: ...41309401TH Rev 4 585 Figure H 7 1 2 RTC Time Read Figure H 7 2 2 RTC Time Set...
Page 587: ...41309401TH Rev 4 587 Figure H 9 Figure H 10 1 3...
Page 588: ...41309401TH Rev 4 588 Figure H 10 2 3 Figure H 10 3 3...
Page 589: ...41309401TH Rev 4 589 Figure H 11 1 3 Figure H 11 2 3...
Page 590: ...41309401TH Rev 4 590 Figure H 12 Figure H 11 3 3...
Page 591: ...41309401TH Rev 4 591 Figure H 13 1 2 Figure H 13 2 2...
Page 592: ...41309401TH Rev 3 592 592 Figure H 14 1 2 Figure H 14 2 2...