Oki B4100 - Manual (Page 372)

40055101TH Rev.4 372 /
Figure A2.1.1 OKIOFFICE 44/OKIFAX 4100 Copy Picture Signal
LED
LCD
DRV.
LCDC
Key switch matrix OPE. CPU
OPE
Handset
TEL(option)
NCU
NCU
L1, L2 T1, T2
: A circuit which conducted by sub-power supply unit at the time of a standby state.
Ri
SUB +5V
PC1
AMP
Speaker
X' tal
MODEM 14.4 kbps
IOGA3 3/4: Peripheral control 1284 control CS generation I/O port DMA 2ch
Driver
CTR (option)
SUB +5V
X' tal 20 MHz
Mask ROM 512 KB(x16)
FLASH 512 KB(x16)
DRAM 512 KB (x8)
x 2
CPU SH7034
IOGA3 3/4: High-voltage control
RTC
X' tal
BAT
MEM (option)
P-SRAM (0.5/1 MB)
512 KB (x8) x1/ 512 KB (x8) x2
IOGA3 1/4: Scanning control
-8V
A/D
DRV. DRV. DRV.
PC1
IOGA3 2/4: Printer control OST-EX Buffer 640 bytes Decoding (RLE, TIFF, ACC32) 200-300 converter Smoothing
A4 image sensor 8 dots/mm
PC1
PC2
M M
S-motor
D-motor
LED head 300 dpi
Clutch Heater
Thernistor
AC Output ON/OFF
Main Switching Poewr Supply
Sub-Power Supply
SW
Low-voltage Power Supply Unit
AC (120/240V)
High-voltage Power Supply
Manual feeder sensor Write sensor Outlet sensor Toner sensor Cover open
High-voltage power supply board
SUB +5V
0VP
0VL
+5V
+24V
SUB +5V
-8V
ACON
Hook
RAM1/2
IC2
MASK
FLS
IC3
IC2
IC6
IC2
SIG
TA1
IC2
IC9
HDATA0/1
IC5
IC8
S R
CN5 CN3 CN1
CN14 CN15
CN2
CN7
CN6
CN1
CN9
CN10
CN3
CN1
CN4
CN11/12
CN13
CN1/2
CN99
SDATA0 to SDATA5
Address/data/control bus etc.,
Analog SW
IC11
TLHV(OLHV)
FX048PSU(120V/230V)
CN3
CN3
X2 32.768kHz
X1
X3
29.4912MHz
04W
R44
Receiver 1284-I/F
UNC/WN5/ DN5/FN5