COPYRIGHT © 2002 CANON INC.
2000 2000 2000 2000
CANON SmartBase PC1210D/1230D/1270D REV. 1 MAR. 2002
4-5
CHAPTER 4 OPERATION
1.3 Outline of the Electrical Circuitry
1.3.1 Functional Block Diagram
Memb-
rane
LCD Speaker
*2
T
elephone line
To
po
w
er supply
T
ransmission
Modular
Jack
PCB
*2
Delivery
sensor
NCU PCB
*2
Fixing assembly
Power supply PCB
Switching
regulator
Cartridge
DC controller PCB
Fixing heater control block
High-voltage control block
Drive control block
Sensor detection
Image processor PCB
interface block
Laser control block
Horizontal sync signal control
Scanner motor control
Cartridge detection mechanism
Toner level detection
mechanism
Key detection
and LCD/LED
drive
LCD
function
Serial
communication
control
Control panel
PCB
2-Line/4-Line
conversion circuit
Dial pulse
generation
circuit
Line voltage
conversion circuit
Off-hook
detection
circuit
Image processor PCB
Drive control block
Control panel control block
Image processing control block
Sensor detection
Memory function
ESS control
Communication control block
Speaker control
*2
J403
J4030 J4020
J402
J401
J1/J2/J6
J103/104
J204/201
J315
J319/J320/J321
*2
J301/302
J303/304
J404
J7/J8
Analog
processor
PCB
Contact
sensor
Sensor PCB
Reader motor
ADF
*1
Laser scanner
motor dr
iv
er
Scanner
motor
Fa
n
Man
ual f
eed pic
kup
solenoid
Man
ual f
eed tr
a
y
paper sensor
Cassette pic
kup
solenoid
Laser dr
iv
er/
BD PCB
Original
sensor
Registration
sensor
ADF motor
J317
J501
J503
J504
J502
J601
J310
J3102
J311
*1
J3112
J3113
J3114
J3110
J316
J801
J3120
J3124
J312
J309
J307
J314
J308
Communication
Control
USB serial
number notice
function
Smoothing
Printer Controller
PCB
Parallel I/F
USB I/F
J701
J318
J107
J206
J902
J102
J205/J207/208/J209
J105/
J107/
J911/J912
Reception
J1051
PS3
PS102
PS103
PC
PS4
Contact sensor
home position
sensor
PS1
ADF
(copyboard cover)
open/close
sensor
PS2
PS6
PS7
Original
delivery
sensor
PS8
SL2
SL1
FM1
M4
M3
M2
Main motor
dr
iv
er
Main
motor
J3123
M1
Cassette
paper sensor
Paper leading
edge sensor
J4
J902
FT101 FT901
Reader unit slide
detecting s
witch
*1 : If equipped with ADF functions.
*2 : If equipped with fax functions.
SW1
F04-103-01
Содержание SmartBase 1270D
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