|Print a page of test tags and look carefully at
the barcodes. The barcode will not scan successfully if
the barcode is dark and the lines are not distinct but bleed
into each other. A good barcode will have crisp lines with
visible space between the lines.
Since printers vary you will
need to experiment with your printer settings for the best
results. It is possible that you will get better results
with draft or normal mode instead of best quality mode.
Low ink supply might also affect quality in some printers.
Most sales require that you print tags on white cardstock.
Darker colored paper makes scanning difficult or impossible.
Some sales will be happy to test scan your barcodes if you
send them a sample page prior to the sale. Some sales will
reject items with tags that are not properly prepared!