Chapter 2 Operating Principles
2-2.
Operation of Control Parts
CL-E700 series
2-42
(5)
USB I/F control circuit
The USB (Universal Serial Bus) I/F circuit interfaces with the USB I/F.
The comparator (U15A) and Q12 consist of a USB connection detecting circuit.
When a USB connector is connected to the printer, pin 1 (VBUS) of connector J12 goes to
“High” level. Thus, Q12 turns OFF, pin 176 (USBVBUS0) of the CPU (U1A) goes to “High” level,
and USB connection is detected.
The data transmission is carried out via pins 174 (USBDM0) and 175 (USBDP0) of the CPU.
1
2
3
4
5
D7
L6
J12
L7
C136
L5
SHLD
VBUS
GND
D-
D+
USB I/F
[SA Main PCB]
C137
D6
VBUS0
174
DM0
175
DP0
A certain voltage is applied when
a USB connector is connected.
Diode Array
(Transient Voltage Supressor)
R113
U15A
-
+ 3
2
1
BA2903SFVM
R114
R115
C138
R107
R112
C134
+5.0V
Q12
DTC115TM
R109
+5.0V
C135
VBUSIN0
176
CPU
U1A
USBDM0
USBDP0
USBVBUS0
R108
+5.0V
R110
+3V
H: USB connected
L: USB disconnected
1
2
3 4
Содержание CL-E700 Series
Страница 1: ...Technical Manual CL E700 series Thermal Transfer Printer...
Страница 5: ...Chapter 1 Specifications 1 1 CL E700 series CHAPTER 1 SPECIFICATIONS...
Страница 15: ...Chapter 2 Operating Principles 2 1 CL E700 series CHAPTER 2 OPERATING PRINCIPLES...
Страница 87: ...Chapter 3 Disassembly and Maintenance 3 1 CL E700 series CHAPTER 3 DISASSEMBLY AND MAINTENANCE...
Страница 151: ...Chapter 4 Troubleshooting 4 1 CL E700 series CHAPTER 4 TROUBLESHOOTING...
Страница 167: ...Chapter 5 Parts Lists CL E700 series CHAPTER 5 PARTS LISTS...
Страница 172: ...Chapter 5 Parts Lists CL E700 series 5 6 DRAWING NO 1 General Assembly Rev 0...
Страница 195: ...Chapter 5 Parts Lists 5 29 CL E700 series DRAWING NO 7 Unit Opepane Rev 0...
Страница 203: ...Chapter 5 Parts Lists 5 37 CL E700 series DRAWING NO 9 SA2 Ribbon Unit Fan Rev 0...
Страница 206: ...Chapter 5 Parts Lists CL E700 series 5 40 DRAWING NO 10 Accessories Rev 0 3 2 4 1 1 1 2 1 3...
Страница 208: ...Chapter 6 Circuit Diagrams 6 1 CL E700 series CHAPTER 6 CIRCUIT DIAGRAMS...
Страница 230: ...Appendices AP 1 CL E700 series APPENDICES...
Страница 232: ...Appendices A Mounting Diagrams AP 3 CL E700 series A Mounting Diagrams A 1 SA Main PCB 1 Parts side...
Страница 233: ...Appendices A Mounting Diagrams CL E700 series AP 4 2 Solder side...