41309401TH Rev.4
289 /
Figure A.4 (9/13) ISDN-G3 RX (OKIFAX4550)
PC1
PC2
A4 image
sensor
300 dpi
M
M
LED head
300 dpi
Clutch
Heater
Thermistor
A/D
IEXSEED300
DRV.
DRV.
DRV.
SRAM 32KB
IOGA4 2/4
Printer control
OST-EX
Buffer 640 bytes
Decoding (RLE,
TIFF, ACC32)
200-300 Converter
Smoothing
High-voltage
Power Supply
Manual feeder
sensor
Write sensor
Outlet sensor
Toner end sensor
Cover open sensor
Main Switching
Power Supply
S-motor
D-motor
+30V
+24V
+5V
0V
-8V
SW
Sub-Power
Supply
DRAM
2MB(x16)
IOGA4 4/4
High-voltage Control
FLASH
1MB(x16)
RTC
BAT
X
’tal
IOGA4 1/4
(CPU SH7034)
X
’tal
IOGA4 3/4
Peripheral
control
1284 control
CS generation
I/O port
DMA 2ch
SW
AC (120V/240V)
AMP
Speaker
NCU
INU/EN9
OPE
LED
Key switch
matrix
OPE CPU
LCD
LCDC
DRV
T1, T2
L1, L2
: A circuit which conducted by sub-power supply unit
at the time of a standby state. (only 240V)
DRAM
2MB(x16)
AC Output
ON/OFF
Bi-Centro I/F
Ri
HOOk
S
R
Sub +5V
Sub +5V
PC1
Sub +5V
PH
PC1
-8V
(Low-voltage Power Supply Unit)
(High-voltage Power Supply Board)
8PPM
HEATON
ACON
High-voltage
Power Supply
SDATA2 to SDATA7
CN5
CN3
CN1
CN12
CN13
CN2
CN7
CN101
SIG
IC6
IC16
IC7
HDATA0,etc.,
IC9
TR513 etc.,
IC2
RAM1
IC3
BAT1
X2
32.768kHz
20.000MHz
X1
RAM2
RAM3
IC2
IC2
IC2
CN11
FLS
IC5
CN6
CN8
CN9
CN1
CN1
CN2
Address/data/
control bus etc.,
CN4
CN1
CN10
CN3
CN2
CN1
46F
MPW1446 (230V)
MPW1546 (120V)
P2H
P6L
NCU
ISDN
ISDN
LINE
CN1
G4N
X
’tal
MODEM
33.6Kbps
FPGA
V.34
/ISDN
I/F
IC8
X3 28.224MHz
IC22
alternative
CN2
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...