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How to save an old printer from the e-waste pile with a Raspberry Pi (ounapuu.ee)

submitted 5 months ago by [email protected] to c/[email protected]

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[–] [email protected] 3 points 5 months ago (1 children)

Good work. I tried to do similarly with a HP CP1025nw (roughly 10 years old), which has become unreliable with Windows 11. But although I connected the printer to the Pi (I used a model 3B) with a USB cable, CUPS does not appear to see the "usb://....." connection string. CUPS does allow me to connect to the printer wirelessly, with a connection string that begins "dnssd://....".

So I have it working wirelessly but I was hoping to get it using USB since I suspect that would be more reliable.

I'm wondering why your Pi allows the "usb://....." method, but mine does not.

[–] [email protected] 1 points 5 months ago

Some HP printers require proprietary firmware be loaded over USB. You could try hplip but I found that although my printer is explicitly supported it couldn't identify it via device ID.