Chapter 3 Disassembly and Maintenance
3-1. Maintenance Precautions
CL-E720DT
3-4
3-1.
Maintenance Precautions
Before starting disassembly/reassembly or mechanical adjustment, be sure to
disconnect the power cord from the power source. Otherwise, electric shock may occur.
Observe the following in maintenance work:
•
Do not disassemble/reassemble or adjust the machine, if it functions properly.
Particularly, do not loosen screws on any component, unless necessary.
•
After completing an inspection and before turning on the power, be sure to check that
there is no abnormality.
•
Never try to print without media.
•
Check that the media is properly set.
•
Do not lay anything on the cover or lean against it during maintenance or while the
printer is in operation.
•
During maintenance, be careful not to leave parts or screws unattached or loose
inside the printer.
•
When handling a printed circuit board, do not use gloves, etc., which can easily
cause static electricity. Since ICs, such as CPU, RAM and ROM, might be destroyed
by static electricity, do not touch lead wires or windows unnecessarily.
•
Do not put the printed circuit boards directly on the printer or on the floor.
•
When disassembling or reassembling, check wires for any damage and do not pinch
or damage them. Also, run wires as they were.
Warning
Caution
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 ...