Chapter 2 Operating Principles
CL-E720DT
2-2
CHAPTER 2 OPERATING PRINCIPLES
TABLE OF CONTENTS
Operation of Each Mechanism ....................................................................................... 2-4
2-1-1. Locations and Functions of Major Electrical Parts ............................................. 2-4
2-1-2. Media Feed/Printing Mechanism........................................................................ 2-5
2-1-3. Label/Tag Detection Mechanism ........................................................................ 2-6
2-1-4. Print Head Up/Down Detection Mechanism....................................................... 2-9
2-1-5. Head Balance Adjustment Mechanism .............................................................. 2-10
2-1-6. Media
Mechanism .......................................................... 2-11
Operation of Control Parts .............................................................................................. 2-12
Configuration of Printer ...................................................................................... 2-12
(1) Filter & power supply section..................................................................... 2-12
(2) SA Main PCB............................................................................................. 2-12
(3) Operation panel (SA Opepane PCB) ......................................................... 2-12
(4) Thermal print head .................................................................................... 2-13
(5) Sensors ..................................................................................................... 2-13
(6) Motor ......................................................................................................... 2-13
(7) USB I/F (USB2.0 compatible full-speed mode/high-speed mode)............. 2-13
(8) Wired LAN I/F ............................................................................................ 2-13
(9) Serial I/F (RS-232C) (Option) .................................................................... 2-13
(10) Parallel I/F (IEEE1284) (Option)................................................................ 2-13
(11) Wireless LAN I/F (Option).......................................................................... 2-13
Operation of Control Unit ................................................................................... 2-14
ROM ................................................................................................ 2-15
(3) SDRAM (Synchronous dynamic RAM)...................................................... 2-15
(4) FPGA......................................................................................................... 2-15
(5) Head
control .............................................................................................. 2-15
(6) Stepping motor driver (For “SA PF Motor”)................................................ 2-15
(7) Buzzer ....................................................................................................... 2-15
map ...................................................................................................... 2-16
2-2-4. Sensors .............................................................................................................. 2-17
(1) Head up sensor (SA Head Up Sensor PCB) ............................................. 2-17
(2) Transparent sensor (SA TRA Sen PCB) and reflective sensor
(SA Ref Sensor PCB) ................................................................................ 2-18
(3) Head temperature sensor.......................................................................... 2-20
(4) PF motor temperature sensor.................................................................... 2-21
(1) PF motor driver.......................................................................................... 2-23
(2) Head
driver ................................................................................................ 2-24
driver ............................................................................................. 2-25
Other circuits ...................................................................................................... 2-26
(1) Power supply circuit................................................................................... 2-26
(2) Reset
circuit............................................................................................... 2-27
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 ...