Chapter 4 Troubleshooting
4-2. Troubleshooting
CL-E720DT
4-6
4-2-2. Media-feed Problems
Symptoms
Checks
Remedies
No media feed
1. Is the connector J5 for the “SA PF
Motor” connected firmly?
2. Is the connector J13 for “Unit Power
Supply” connected firmly?
3. Is +24V DC supplied to the “SA Main
PCB” (at pins 6 to 9 of JJ13)?
J5
To Unit Power Supply
Front
J13
J2
1
9
[Bottom right of the “SA Main PCB”]
4. Does the “SA PF Motor” turn?
5. Failure in the control circuit or in the
paper feed motor driver.
1. Connect it firmly.
2. Connect it firmly.
3. Replace the “Unit Power Supply”.
4. Replace the “SA PF Motor”.
5. Replace the “SA Main PCB”.
Irregular media feed
pitch
1. Is the connector J5 for “SA PF Motor”
connected firmly?
2. Is dust or other foreign matter on the
“SA Platen”?
3. Does the media feed mechanism work
smoothly?
4. Failure in the control circuit or in the
paper feed motor driver.
1. Connect it firmly.
2. Remove dust or foreign matter.
3. Check, clean and lubricate
mechanical parts.
Note:
Refer to Chap. 3 "Disassembly
and Maintenance".
4. Replace the “SA Main PCB”.
Media jamming
1. Is media set correctly?
2. Is the media being used within
manufacturer's specifications?
3. Check the media feed mechanism and
media path for dust or other foreign
matter.
1. Set media correctly.
2. Use media within manufacturer's
specifications.
3. Remove dust or foreign matter.
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 ...