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Chapter 2 Operating Principles
2-2.
Operation of Control Parts
2-13
CL-E720DT
(4)
Thermal print head
The thermal print head has the following thermal elements. It also has the print head driver
circuit.
• 864 dots
(5)
Sensors
The following 5 sensors are used:
Sensor name
Description
Head Up Sensor
[SA Head Up Sensor PCB]
Photointerrupter.
Transparent Sensor
[SA TRA Sen PCB]
Photo sensor using the phototransistor.
Reflective Sensor
[SA Ref Sensor PCB]
Photo sensor consisting of 2 LEDs and 1
phototransistor.
Head Temperature Sensor
(SA Head)
Thermistor incorporated in the “SA Head”.
PF Motor Temperature Sensor
(SA PF Motor)
Thermistor attached to the “SA PF Motor”.
(6)
Motor
The “SA PF Motor” is a stepping motor to feed media.
(7)
USB I/F (USB2.0 compatible full-speed mode/high-speed mode)
This is a circuit to transmit and receive serial data between the printer and the host by means
of USB2.0 compatible full-speed mode (12Mbps) or high-speed mode (480Mbps).
USB I/F or Wired LAN I/F is automatically selected when data is received.
(8)
Wired LAN I/F
This is a circuit that supports Ethernet protocol. LAN connection is possible.
USB I/F or Wired LAN I/F is automatically selected when data is received.
(9)
Serial I/F (RS-232C) (O
p
tion)
This is a circuit to transmit and receive serial data between the printer and the host.
(10)
Parallel I/F (IEEE1284) (Option)
This is the parallel I/F to transmit and receive parallel data between the printer and the host. It
supports Centronics Compatible mode, NIBBLE mode and ECP mode.
(11)
Wireless LAN I/F (O
p
tion)
This is a circuit that supports wireless LAN protocols (IEEE802.11n/IEEE802.11g/
EEE802.11b).
Summary of Contents for CL-E720DT
Page 1: ...Technical Manual CL E720DT Direct Thermal Barcode Label Printer ...
Page 5: ...Chapter 1 Specifications 1 1 CL E720DT CHAPTER 1 SPECIFICATIONS ...
Page 15: ...Chapter 2 Operating Principles 2 1 CL E720DT CHAPTER 2 OPERATING PRINCIPLES ...
Page 75: ...Chapter 3 Disassembly and Maintenance 3 1 CL E720DT CHAPTER 3 DISASSEMBLY AND MAINTENANCE ...
Page 119: ...Chapter 4 Troubleshooting 4 1 CL E720DT CHAPTER 4 TROUBLESHOOTING ...
Page 131: ...Chapter 5 Parts Lists 5 1 CL E720DT CHAPTER 5 PARTS LISTS ...
Page 159: ...Chapter 5 Parts Lists 5 29 CL E720DT DRAWING NO 7 Unit Opepane Rev 0 ...
Page 162: ...Chapter 5 Parts Lists CL E720DT 5 32 DRAWING NO 8 Accessories Rev 0 3 2 1 1 1 2 1 3 ...
Page 164: ...Chapter 6 Circuit Diagrams 6 1 CL E720DT CHAPTER 6 CIRCUIT DIAGRAMS ...
Page 183: ...Appendices AP 1 CL E720DT APPENDICES ...
Page 186: ...Appendices A Mounting Diagrams CL E720DT AP 4 2 Solder side ...