Label printers and receipt printers: choosing and running them

Direct thermal or thermal transfer

Direct thermal printers use heat-sensitive paper or labels that darken where the print head touches them. There is no ink, toner or ribbon, which keeps them simple and cheap to run. The trade-off is that the print fades over months, especially in sunlight or heat. That is fine for courier labels, receipts and short-life shipping labels, which only need to last until the parcel arrives or the customer leaves the shop.

Thermal transfer printers use a ribbon that melts ink onto the label. The result lasts years and resists heat, water and abrasion, making it the right choice for asset tags, product labels, shelf labels in harsh environments and anything that needs to stay readable long term. Many desktop label printers can do both, depending on whether a ribbon is fitted, which gives flexibility as needs change.

Sizes, media and print resolution

The width the printer can handle is the first practical limit. Courier labels in New Zealand are commonly around 100 by 150 millimetres, so a four-inch desktop label printer is the usual choice for dispatch benches. Receipt printers typically use 80 millimetre rolls, with 58 millimetre rolls on compact or mobile units. Small product, barcode and file labels can use narrower printers designed for that job.

Print resolution matters for small text and dense barcodes. Standard resolutions suit most shipping and receipt work, while higher-resolution printers help with tiny product labels, small QR codes and pharmacy or laboratory labels where readability is critical. Always buy media that matches the printer's type and core size, and keep a sensible stock, because running out of labels on a busy dispatch day stops the bench.

Connections and compatibility

Receipt printers connect by USB, network, Bluetooth or sometimes serial. Network printers are generally the most reliable choice for a point of sale setup with more than one terminal or a tablet-based POS, because they don't depend on a single computer being on. Bluetooth suits mobile POS and tablets but can be fiddly with pairing. Check which models your POS system officially supports before buying; unsupported printers often print but fail to open the cash drawer or cut the paper.

Label printers for courier work need to work with your courier's software or web portal and your e-commerce or warehouse system. Many courier platforms list supported printers and provide specific drivers or settings. Industrial brands such as Zebra use their own printer languages, which some software prefers, so match the printer to what your systems expect.

Setting them up properly

Install the manufacturer's driver rather than relying on a generic one, and set the label size, orientation and darkness correctly in both the driver and the application. Most alignment problems come from a mismatch between the label size configured in the software and the one loaded in the printer. Run the printer's calibration routine whenever you change label stock.

Give network printers a fixed IP address or a DHCP reservation so they don't move after a router restart, which is one of the most common causes of 'the receipt printer stopped working this morning'. Label the printer with its IP address and keep a note of its settings, so whoever is fixing it later doesn't have to guess.

Common faults and quick fixes

Blank labels or receipts usually mean thermal paper loaded the wrong way up, or direct thermal mode chosen with labels that need a ribbon. Faded print points to the darkness setting, a dirty print head or old stock that has been exposed to heat. Labels printing across two pages or skipping one mean the printer needs calibrating to the gap or black mark between labels.

Clean the print head regularly with the cleaning pens or swabs the manufacturer recommends, because adhesive and dust build up and cause streaks and voids in barcodes. Print heads are a wear part and eventually need replacing on busy printers. A spare print head, or a spare printer for the dispatch bench, can be worth having where shipping volume is high.

Planning for growth

A desktop label printer that is fine for twenty parcels a day may struggle at two hundred. Industrial printers are built for continuous use, take larger rolls and print faster. If the business is growing, factor in volume, label roll size and how often staff will need to change media. Fewer roll changes mean fewer interruptions.

For receipt printers, consider the whole POS setup together: tablets or terminals, card readers, cash drawers, scanners and the network they all depend on. A wired network connection for fixed devices and solid Wi-Fi for mobile ones avoid the drop-outs that frustrate staff and customers at the counter.