We are currently building a fully automated Inventory and Fulfillment Management system, we are using ZT420 printers to print labels directly from our cloud web app, I was able to add ZT420 as a raw printer in CUPS but whenever I try to send something from CUPS to ZT420, ZT420 startes to act weird, front panel display starts to flicker and printer tries to switch Ribbon mode, even if we use direct thermal. Unfortunately default printer options are not visible under RAW printer so we can not adjust any printer option. We are using Socket Connection for this setup.
I was also able to add ZT420 as a regular Zebra ZPL printer under CUPS, with again socket connection, which works fine, prints fine but very slow most probably due to socket connection, print only 1 4x6 label each 3 seconds. Is there anyway to speed up this printing with Socket?
I also tried IPP protocol with this: ipp://xxxxxx:631/resource?waitjob=false
CUPS adds the printer but printer doesn't print anything, CUPS says Pending for printer.
As far as I know, ZT420 supports IPP, do we need to enable anything to connect with IPP?
Please let me know what I am missing here,
Thanks in advance,