An example with label printer that is uncommon is that your staff is stressed rips tears off the labels in the wrong direction with makes the liner to break on the wrong spot. This in turn can be reason for the adhesive to get stuck on the wrong place. And when the next print is sent to the printer, the printer then takes back the label about 3mm (so it can print the entire label) which could result in the label getting stuck on the platen roller. When this happens they staff wants to solve it as soon as possible and cuts it loose with a knife, calibrates the printer and goes on as per usual. What often happens when you do this is that when cutting of the label your staff will also cut into the platen roller, that is made of rubber. This will decrease the quality of the prints and it will only get worse over time. If you are unlucky the label can also get stuck in the printhead, that is the part that is printing your label. And the printhead is amongst the more sensitive parts of your printer, and getting labels stuck there can damage your printer. And if that happens you might have to replace the printhead that is pretty simple to do however it is one of the more expensive parts of the printer. If you purchase a service agreement directly when you get your printer, both of these parts are included. You may choose from 3 or 5 years for the Zebra OneCare service agreement.