DYMO 400 TWIN TURBO User Manual

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Chapter 8
Maintenance and
Troubleshooting
This chapter describes how to take care of your LabelWriter printer and offers suggestions for 
identifying problems that can occur when you using the printer. If you can’t solve a problem, this 
chapter also describes how to contact DYMO for technical support.
Caring for the LabelWriter Printer
The LabelWriter printer is designed to give you long and trouble-free service, while requiring very 
little maintenance. You’ll get the best possible performance from your LabelWriter printer if you 
follow the setup instructions that appear in the Quick Start Guide and the procedures described in 
this section. 
You can easily clean your LabelWriter printer using the following items:
Lint-free cloth. 
Isopropyl alcohol, diluted dishwashing detergent, or diluted glass cleaner. (If you use glass 
cleaner, make sure it does not contain ammonia.)
Small, soft brush, such as a paint brush. 
LabelWriter cleaning card. One cleaning card  is included in your printer package. To purchase 
additional cleaning cards, visit 
To keep your LabelWriter printer working properly, you should clean it from time to time. Dusting 
the outside of the printer occasionally will help keep foreign matter from getting inside the printer. 
However, it is still a good idea to periodically perform some basic interior maintenance. 
To clean the exterior and interior of your printer
1
Turn off the printer and disconnect the power cord. 
2
Use the lint-free cloth to wipe the exterior of the printer. Remove dirt and smudges with one of 
the cleaning solutions mentioned above. 
3
Open the top cover. 
4
Use a small, soft brush/cotton swab to whisk away paper dust and other stray particles from the 
inside of the printer.
5
Remove the roll of labels to clean under the roll. 
6
If you have a LabelWriter cleaning card, follow the instructions printed on its packaging and 
feed it through the printer mechanism.
7
Reconnect the power cord and turn on the printer.
8
Reload the roll of labels and close the top cover.