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4
1 System Description
1.1.
Electrical Circuit Explanation
1.1.1.
Fax Block Diagram
IC12
IC11
P
eper
F
eed
Solenoid
A-point
Sensor
B-point
Sensor
Speak
er
TEL
LINE
Co
v
er Sensor
50MHz
CIS
IA2008-MA30C (A4)
or
IH2010-MB51B (B4)
Work Memory
Page Memory
SDRAM
8MB
Scanner
/ Pr
inter
Motor
F
ax Bloc
k Diag
ra
m
PNL PCB
Key
Matrix
and LED
MN860741
16MHz
Motor
Driver
7.235MHz
10.923MHz
LSU UNIT
Pa
rallel I/F
SHINE
(DZAC000273)
for 16pels/mm
Pr
inting
fo
r 600dpi
Pr
inting
5MHz
Stamp
Fa
n
ILS PCB
Program
FROM
2MB
24.576MHz
MN195006
Si3021
Si3015
Handset
(option)
SC PCB
IEEE1284
Transceiver
CPU
(V850/MA1)
LCD Unit
CPU
P
o
w
er Inlet
A
CI PCB
Heater
Control
+5VP
+5V
+24V
-12V
+3.3V
Low Voltage
Power Supply
AC
Ther
mister
Fuser LAMP
Ther
mostat
Specific Countr
ies Only
.
Not Mouted
for USA, Canada
Registr
ation
Sensor
Exit
Sensor
B4 Width
Sensor
High Voltage
Power Supply
P
aper Chec
k
Sensor
T
oner
Sensor
SNSE PCB
ETXDN342A2E(120V)
ETXDN342E2E(230V)
IC1
IC18
IC5
IC6
IC9
IC7
IC13,19
Q16
Q17
Q18
Q19
IC28
IC26
Q39
Q40
Q2
Q5
Q3
Q27
IC4
IC2
C5
F
acsimile Real Ima
g
e
Pr
ocessor
A/D Con
ver
ter
, White Shading
64 Le
vels Err
or Diffusion
Binar
y Coding,
Scaning Data Reduction
System Handling and Ima
g
e
Na
vigation Engine
Ad
dress Decoder
, SDRAM Contr
ol,
DMA Contr
ol
W
atc
h-dog
Timer(Reset Contr
ol),
IEEE1284 Contr
ol
CIS Contr
ol,
Blac
k Shading,
Motor Contr
ol
Print Quality Contr
ol,
Print Data Reduction
Print Engine Contr
ol(LSU & Heater)
32-bit RISC CPU (V850/MA1)
PNL CPU
I/F
Ima
g
e Code/De-code (BC/BE)
SDRAM Contr
ol
I/O P
o
rt
SNST PCB 2/2
SNST PCB 1/2
Modem
G3 Signal Contr
ol
DTMF Dialing
D
A
A I/F
D
AA(Digital Access Arrang
ement)
Line
V
olta
g
e/Loop Current Monitor
A
C/DC
T
ermination,
Ring
er Impedance
Ring Detect,
Pulse Dialing
Integrated Analog Fr
ont End(AFE)
IC3
16Mbits Flash R
O
M
Fiemware Pr
ogram Code
Bac
k_up Data (TEL#,
P
arameter etc..)
8-bit CISC CPU (uPD780022A)
LCD Unit Contr
ol
K
e
y Matrix Monitor
LED Contr
ol,
R
T
C
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