Outline Of The Electrical Circuitry; Functional Block Diagram - Canon iR1200 Series Service Manual

1.3 Outline of the Electrical Circuitry

1.3.1 Functional Block Diagram

Memb- *2 PC
LCD Speaker
rane
J4030 J4020
Parallel I/F
USB I/F
J403 J402 J404
Control panel Printer Controller
PCB PCB
Key detection Communication
and LCD/LED Control
drive
USB serial
LCD number notice
function function
Serial Smoothing
communication
control
J401 J701
J315 J318
Drive control block
Control panel control block
Image processing control block
Communication control block
*2
Speaker control
J317 J310
J501
M2
Analog
Reader motor
processor
PCB
J503 J502
J504
J601
Sensor PCB
ADF
Contact sensor
(copyboard cover)
home position
open/close
sensor
sensor
PS1 PS2
COPYRIGHT © 2002 CANON INC.
Modular
Jack
PCB *2
*4 *3
J907 /J911 /
*3
J912
J7
*3 *3 *4
J7 /J8 /J10
*2
NCU PCB Power supply PCB
2-Line/4-Line
conversion circuit
Dial pulse
generation
circuit
J4 J102
Off-hook
detection
circuit
Line voltage
conversion circuit
J1/J2/J6
*2 *2 *3
J81 /J320 /J321
Sensor detection
Image processor PCB
Memory function
ESS control
*1
J311
J3102
ADF *1
Original
sensor
PS6
J3112
Registration
sensor
PS7
J3113
Original
delivery
sensor
PS8
J3114
ADF motor
M3
J3110
2000 2000 2000 2000
Delivery
sensor
Fixing assembly
PS3
J1051
J109 J105/ J206 J205/J207/208/J209
J107/
Switching
Fixing heater control block
regulator
High-voltage control block
Drive control block
J106/ J202/
*2
J108 J203
Sensor detection
Image processor PCB
interface block
Waste toner full
detection function
J103/104
J301/302
J316 J312
J801 J3120 J3123
M4 M1
Scanner Main
motor motor
*1 : If equipped with ADF functions.
*2 : If equipped with fax functions.
*3 : If equipped with fax functions and 230V model.
*4 : If equipped with fax functions and 120V model.
F04-103-01
CANON iR1200/iR1300 Series REV. 0 AUG. 2002
CHAPTER 4 OPERATION
Toner bottle
sensor
PS11
J6521
J652
Waste toner
Sensor relay
Cartridge
full sensor
PS10
J2521
J252
PS101 PS102
LGL paper Paper leading
sensor edge sensor
DC controller PCB
Laser control block
Horizontal sync signal control
Scanner motor control
Cartridge detection mechanism
Toner level detection
mechanism
J204/201
J303/304
J309 J307 J314
J3124
FM1 SL1 SL2 SW2 SW1
Humidity sensor
HS
J6531
J653
PCB
J651
J251
PS103
Cassette
paper sensor
J308
J3081
PS4
4-5