Canon BJC 50 Service Manual - Page 123

Canon BJC 50 - Color Inkjet Printer Manual

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BJC-50 4.2 Signal Control Section 4.2.1 Control board block diagram Part 4: Technical Reference Paper Feed Motor A: Printer Internal Temperature Head Rank Head ID Head Temperature CR Motor B: Voltage Input Recharging Battery Voltage Recharge Current Battery Temperature A B Paper Feed Motor Driver Lithium Ion Battery Recharge Circuit Parallel I/F IrDA Delivery Sensor Charge LED POWER SW POWER LED Beeper Error LED RESUME SW CARTRIDGE SW 23.04MHz 24MHz A21 P63~P67 IFD0~7 BUSY RXD,TXD MODE FIRRXD CSSEL SNM1 P64 LPB1 P65 LPB2, 3 Carriage Motor Driver PA1~PA3 P70~73 Analog Switch AD0~AD3 WHEAT MCHE BENB HENB BJ Cartridge Scanner Cartridge A S I C (IC6) P83 P87 EEPROM RTC 32.768KHz P64 Home Position Sensor MD0~15 MA0~9 A 1~21 D 0~15 CE 1 P55 Paper End Sensor IO 0~15 A 0~19 AD 0~16 A 0~15 DRAM 4Mbit Flash ROM/Font ROM 4Mbit / 8Mbit Figure 4-27 Control Board Block Diagram 4-35

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4.2 Signal Control Section
4.2.1 Control board block diagram
4-35
BJC-50
Part 4: Technical Reference
Lithium
Ion
Battery
Re-
charge
Circuit
A
B
Analog
Switch
CR Motor
Paper Feed
Motor
EEPROM
RESUME SW
RTC
32.768KHz
Paper End Sensor
A 0~15
Home Position Sensor
IO 0~15
A 0~19
DRAM
4Mbit
Carriage
Motor Driver
23.04MHz
24MHz
P83
P65
WHEAT
MCHE
BJ Cartridge
Scanner
Cartridge
Paper Feed
Motor Driver
BENB
HENB
P87
P64
P55
AD 0~16
Flash ROM/Font ROM
4Mbit / 8Mbit
A 1~21
D 0~15
CE 1
LPB1
LPB2, 3
A21
MD0~15
A: Printer Internal
Temperature
Head Rank
Head ID
Head Temperature
A S I C
(IC6)
B: Voltage Input
Recharging Battery
Voltage
Recharge Current
Battery Temperature
P64
MA0~9
P70~73
PA1~PA3
AD0~AD3
P63~P67
SNM1
CSSEL
RXD,TXD
MODE
IFD0~7
BUSY
CARTRIDGE SW
Parallel I/F
Charge LED
POWER LED
POWER SW
Beeper
Error LED
IrDA
FIRRXD
Delivery Sensor
Figure 4-27 Control Board Block Diagram