Supermarket Barcode Locker – 12-Door Steel Cabinet with Ticket Printer The lockers at the supermarket entrance seem like a small thing until they don’t work. Saturday afternoon rush hour. Customers walk in with shopping bags in hand, find every compartment full, and drop their bags on the floor. Someone loses something — they blame the store. Then there are the old-school lockers with metal tokens. Customers shove the token in, the door pops open. But they lose the token, or they mix it up with someone else’s, or the lock jams. I helped a chain supermarket replace their lockers last year. When I asked about complaints, the manager listed three categories: won’t open, won’t open, and won’t open. They switched to barcode electronic lockers. Store your stuff — the machine prints a barcode ticket. Come back — scan the ticket. One second. Done. The manager said locker complaints went to zero. Here’s the setup. Barcode Ticket, One-Time Code Press “Store” on the touch screen. The thermal printer prints a barcode ticket in about 3 seconds. Door pops open. Put your stuff in, close the door. To retrieve, scan the barcode. The door opens. That’s it. The barcode is invalid after…