Every printer should say AirPrint on the box, with one exception: the DYMO 5XL label printer works through the Mac or PC it is plugged into.
The iPad is our certified pick, but Android tablets and any computer with a modern browser also run Moto Agent. Printers still need AirPrint.
Printers and registers belong on the same network as the iPad. Keep them off the guest Wi-Fi.
The tablet cannot talk to USB or serial hardware. The receipt printer opens the cash drawer, so the drawer plugs into the printer.
Barcode scanners must be in keyboard, or HID, mode. Most ship that way already.
Label printing, shipping labels and extra registers beyond the first at a location are Growth plan features.
Buy one spare receipt printer for a multi counter store. It is the single part that stops checkout when it fails.