Canon MultiPASS C755 Service Manual - Page 135

Block Diagram - drivers

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MultiPASS C755 Chapter 3: Maintenance & Service 10. BLOCK DIAGRAM 10.1 Block Diagram ROM 16M bit (IC201) SRAM 256K bit (IC202) AC120V +5V Power supply unit +3.3V +24V Regulator (IC601) +12V USB controller (IC901) MPU (IC101) USB 5.8 MHz Document sensor Document edge sensor Operation panel unit System control section System controller (1/3) (IC301) Real-time clock IC Serial transmission (IC502) Data backup Address/Data Bus SD0 to SD15 Reset IC (IC503) Address Bus SA0 to SA23 DRAM 64Mbit (IC203) Figure 3-43 Block Diagram 3-84 Document feed motor M Driver IC (IC 501) Carriage motor M Paper feed motor Driver IC (IC 201) M Pickup roller sensor Paper edge sensor Temperature sensor Cover sensor Ink detect sensor Printer control section 48MHz System controller (2/3) (IC301) Bi-Centronics interface EEP ROM (IC301) System controller (3/3) (IC301) UHQ function Color Image Processing function SRAM 273k bit MPU&Printer controler (IC101) Address Bus A1 to A20 Data Bus AD0 to AD15 Document scanning section ROM 8M bit DRAM 16M bit (IC102) (IC202) Heater Heater driver driver LED Color Contact sensor Home position sensor Cartridge detection Subheater BJ head Modem IC FM336 (IC701) Communication control section AMP. NCU board Speaker

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3-84
MultiPASS C755
Chapter 3: Maintenance & Service
10. BLOCK DIAGRAM
10.1 Block Diagram
Figure 3-43 Block Diagram
Data backup
ROM
16M bit
(IC201)
SRAM
256K bit
(IC202)
Real-time
clock IC
(IC502)
System control section
DRAM
64Mbit
(IC203)
Serial transmission
Operation panel unit
Reset IC
(IC503)
System controller (1/3)
(IC301)
MPU
(IC101)
Driver IC
(IC 201)
Sub-
heater
Carriage
motor
Home position
sensor
BJ head
Paper feed
motor
System controller (2/3)
(IC301)
ROM
8M bit
(IC202)
Temperature
sensor
DRAM 16M bit
(IC102)
Cartridge detection
Bi-Centronics
interface
Printer control
section
M
M
MPU&Printer controler
(IC101)
Power supply
unit
+12V
+24V
+5V
AC120V
Ink detect
sensor
EEP ROM
(IC301)
Heater
driver
Heater
driver
Driver IC
(IC 501)
Document feed
motor
M
Regulator
(IC601)
Pickup roller
sensor
Color Contact sensor
Document
scanning
section
System controller
(3/3) (IC301)
Paper edge
sensor
NCU board
Communication
control section
Modem IC
FM336 (IC701)
Speaker
AMP.
SRAM
273k bit
LED
USB
controller
(IC901)
USB
Data Bus AD0 to AD15
Cover
sensor
UHQ
function
Color Image
Processing
function
Document sensor
Document
edge sensor
+3.3V
5.8 MHz
Address/Data Bus SD0 to SD15
Address Bus SA0 to SA23
48MHz
Address Bus A1 to A20