Hi Mike
I'm not very good with printers. I still have on my list to troubleshoot my Epson L4150 printer and see if I can make it work on ArcaOS.
Just some thoughts and questions:
- HP LaserJet series 2100 seems to be support (parallel) from some old lists. If you can, confirm with a different OS that it is working. Parallel or USB with your adapter.
- You are using ArcaOS 5.1, right?
- USB seems to be working fine, what I get on your message, when you plugged the USB Parallel adapter to your machine a "Prolific_IEEE_1284_Cont_1" showed up in your Printer Output ports.
- If you think it is the cable, can you try to get closer to the printer for a while with a shorter cable.
For what I know in ArcaOS there are two ways to make the printer work:
1) Legacy IBM OS/2 drivers
2) CUPS (I lack experience here).
The IBM OS/2 Legacy Printer driver have support for HP LaserJet 2100. Did you installed those and created an printer icon with it?
I'm attaching some screenshots, maybe you already did that.
Regards