Some labels are designed for inkjet printers, and others are designed for laser printers. Be certain to select the right type for your printer.
Many artwork programs have templates preloaded for Avery labels. If desired, go to the Avery website to design your labels after signing up for a free account. Find the appropriate template based on the identifying number of the Avery labels you purchased. Enter the correct text and merge codes for printing things such as mailing lists or artwork. Once the label is completed, save the design for future projects or reprints.
To ensure that the printed labels line up with the actual labels correctly, print a sample page on regular paper. Hold the sample page up to the labels to be certain the labels line up the way you want. Identify if the label sheets should be placed in the printer with the label on the top or the bottom.
Some printers need to be set for thicker paper. Others need to have the label sheets fed through individually. Be certain the printer is not set to print on both sides of the paper. Depending on the ink in the printer, you might have to allow each page to dry briefly before stacking the next sheet of labels on it to prevent smearing.
Fan through the label sheets to separate them slightly so they pull through the printer smoothly.
Once the labels are all printed and dried, apply the labels to your envelopes or folders.