Can't print to HP USB printer attached to local network

Jan,

I appreciated your additional comments. According to HP documentation, the M127fn does NOT support wireless connection. Since the ability to print from a mobile device is not an essential requirement for me and would require using AirPrint via an Ethernet connection, I thought I'd see what might be done with my existing set-up.

This is what worked. On my client MBP running Monterey 12.7.5 I installed the drivers supplied by HP (https://updates.cdn-apple.com/2021/macos/071-46903-20211101-0BD2764A-901C-41BA-9573-C17B8FDC4D90/Hew... ) This meant that the driver on the MBP was probably not the same as the one installed by HP Easy Start. I then deleted the printer definitions on both the MBP and iMac and re-added them.

I also removed the "lpadmin -p HP_LaserJet_Pro_MFP_M127fn -o auth-info-required=username,password" parameter and specified "lpadmin -p HP_LaserJet_Pro_MFP_M127fn -u allow:all" on the iMac.

Which of the things I did actually made the difference I'm not sure, but at least it worked!

Thanks again for your help, and I'll keep in mind the possibility of adding an Ethernet switch should the need arise.

BW44

Jan,

Thanks for your reply. I have not tried using the printer with Ethernet since I bought it long ago. It has always worked fine with USB. Since the current set-up I describe was initially working, I’d like to fix the problem I’m now having (if possible). (Also, I’m limited two Ethernet ports on the carrier’s modem/router and they’re in use.)

I may be mistaken, but I looked into AirPrint when it was first released and determined then that my HP printer did not support it. I’ll check again. (But doesn’t it require an Ethernet connection?)

I have not updated the firmware, but will try to do so. But I’d be surprised if this were the problem, since it’s been working until a few days ago. Also, from the error log it would appear to be a hand-shaking problem between the two printer definitions. I was hoping there was a more direct solution.

Cheers,

BW44

Jan,

i just checked, and you are right, my printer is on the list of those supporting AirPrint. I will have to look into what’s involved and try to implement. Apparently it doesn’t require an Ethernet connection.

Will report back.

BW44

Jan (and whoever may follow this discussion),

My solution worked until I rebooted both systems. Then the problem reappeared: when I print from the MBP the job was queued but stopped with the message "Hold for Authentication."

Entering the terminal command "sudo lpadmin -p HP_LaserJet_Pro_MFP_M127fn -u allow:all" on both systems allowed printing the MBP client.

I report this here only because if you have a problem with remote print jobs stopping with "Hold for Authentication" the above terminal command *may* correct the problem (substituting your printer name, of course). I haven't seen anyone else recommending this "fix", and it may not work for other printers. Good luck!

BW44