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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] 1 points 5 months ago (1 children)

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.

[–] Forestial 1 points 5 months ago

Thanks. I have hplip installed on my Pi (version 3.21.2) and my printer is listed as being supported on the hplip support page. That page says Support Level is "Full" and Connectivity is "USB, Network". So it seems that this should work; also the printer works fine over USB to my Windows laptops.

hplip seems to provide a number of command line commands with names like hp-probe and hp-firmware. I have not been able to get any of them to work over USB though; usually they return a message "Warning: No devices found on the 'usb' bus".

Do you mean that "proprietary firmware" is needed to make the printer work with Linux?