Barcode Symbologies

The problem with those is they allow you to print *any* label "at will" (i.e., without the "system" being aware of the label being issued).

They also tend to be thermal (dye transfer) so supplies are more costly. (I've a pile of portable and small desktop thermal label printers getting ready for the recycle bin) As well as the hassle of recharging batteries, etc.

And, you need "another" general purpose printer to print your "non barcode" items (i.e., now you have to stock supplies for two different printers).

For non-contact scanners at reduced density, easier to use a conventional printer to do that "double duty".