Dymo LabelWriter 450 Duo Label Printer Quick Start Manual page 14

Enter your account number and pass phrase, and then click OK.
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Click Buy Postage and purchase postage
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for your account.
Select DYMO LabelWriter 450 Duo Label from
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the Printer list under Printer Selection.
Click Test Print to print a voided postage label.
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You are now ready to start printing actual postage
whenever you need it. Refer to the DYMO Stamps
online Help for more information about using
the software.
You can add postage, buy DYMO Stamps postage
labels, and order supplies directly from within the
DYMO Stamps software.
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