DYMO 300 User Guide

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Introduction
2
 
Thermal printing is based on the principle of heat 
transfer from the thermal print head inside the 
LabelWriter printer to the label. A row of 
miniature heating elements on the print head is 
pressed against the thermal labels. As a specific 
element generates heat, a thermal reaction takes 
place at that point on the label and the label 
becomes discolored. 
 
Labels
 
The only supplies you will ever need for this 
printer are the labels. We recommend you only 
use DYMO brand labels.
How long your labels will last depends on how 
the labels are used. Thermal labels are susceptible 
to fading in two ways: 
 
!
 
Exposure to direct sunlight or fluorescent light 
for an extended period of time will cause fading.
 
!
 
Contact with plasticizers (for example labels 
placed on plastic ring binders) will cause fading.
 
In the original packaging, the label shelf life is 18 
months. When used for short-term applications 
(envelopes, packages, etc.), fading has never 
been reported as a problem. When used to label 
files in a file cabinet, fading is very gradual over 
many years. When applied to the edge of a 
notebook that is then placed on a shelf in the sun, 
fading begins within a few months.
When not in use, keep the labels stored in a cool 
dry place and in the black bag in which they were 
shipped to prolong label life.
 
Registering the 
Software
 
The first time you start the DYMO Label 
Software application, you will be asked to 
register the software. If you choose not to register 
the software at this time you will be prompted the 
next four times you start the program. You can 
register the software at any time by selecting 
 
Register your LabelWriter 
 
from the 
 
Help
 
 
menu.