I my Casio Cash Register, there is a USB port that can connected into my PC. The provided software, allows a more humanistic format for programming the PLU's and Department keys. The mode on the cash register, is harder, but, if you avoid the "coding" features, and just work on the PLU's and Department Codes, you can struggle through it. "Hopefully" the USB port is there for you ? I did get a better manual off of their website over the one that was included, and their tech dept, is reasonably helpful for simplistic questions.. obviously, they can't do it for you, or spend enough time to get you through each key, but, they can answer a few questions to get you on your way.
Once you get the gist of things, with the USB port, a very low res graphic can be added to the top of your receipt tape for Class, Above all else, 'X' daily, 'Z' weekly.. you'll have better control of your numbers if you do. It took me month's to get in to the habit of doing it daily and every Saturday or ?
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