Go to the manufacturer’s website and search for your specific model. Search for "TSC BarTender UltraLite."

: Includes standard 1D and 2D barcode formats like Code 128 , QR Code , and Data Matrix .

But with sensitivity came risk. The program required fidelity. If Mateo used it as a trick, a party game, the results grew flat. Once, on a Friday night crowded and loud, he let Ultralite steer two dozen orders at once. The drinks were astonishing — everyone cheered — but the connection behind them thinned. Patrons left with Instagram photos and pockets of glittering delight, not the small, reverent hush that had become Ultralite’s signature. The next evening, the bar felt brittle. The program retaliated with silence: the chrome of the shaker felt like dull metal, the citrus refused to bloom.