[TMWNN]

I do something similar with my (non-Rollo, generic model that a half dozen generic Chinese brands sell on Amazon) USB label printer. My ASUS router's firmware (<https://www.asuswrt-merlin.net/>) supports a print server via its USB port. Although described as LPD/LPR, I found that it also supports JetDirect/AppSocket, supported within MacOS.

You still have to install a printer driver on the computer side (I found that a different label printer's driver works better than the one the vendor offers for download; go figure), but after telling MacOS to print to `socket://router`, everything works.

One issue I have found is that when set in greyscale mode, the conversion from color to greyscale doesn't work quite right. While visible in places such as the eBay logo on mailing labels printed from there, even black-and-white text and barcodes get smudged. I know that this is a driver issue, not a printer issue, because when I used CUPS from a Linux box as the print server the greyscale curve (as visible from the CUPS test print page) was different, and both black-and-white and color/greyscale elements were printed much more finely, but haven't figured out the issue yet. Meanwhile I print with the driver set to no greyscale.

[codetrotter]

> non-Rollo, generic model that a half dozen generic Chinese brands sell on Amazon

Do you have a link for it?

> I found that a different label printer's driver works better than the one the vendor offers for download; go figure

Which one?

[TMWNN]

>Do you have a link for it?

<https://www.amazon.com/gp/product/B091FGYTXV/>

I use the MacOS driver for Oaustect OT-425A, but cannot find a download link for it. HPRT's own driver at <http://hprt.com/Downloads.html> works; the Oaustect driver just starts printing a few seconds faster. Also try the driver and instructions at <https://www.youtube.com/watch?v=V-la3VYrJEk>.

[codetrotter]

Thanks :)