Which model of HP LaserJet? You might find helpful info here.
Apologies if you've already tried this, but perhaps:
- In Print & Scan Prefs, delete printer.
- Then reinstall latest drivers from Apple Support link above, and restart.
- Then go to Print & Scan Prefs and re-add printer.
Is there possibly an alternative to IPP?
Okay. How about clearing caches?
I use OnyX. However, it's important with OnyX to be very careful about what you tell it to do.
I am thinking of clearing the CUPS jobs cache in the "Cleaning" tab/System tab. Also clearing font caches in the Fonts tab of "Cleaning."
For the sake of future persons let me summarize the solution. I went to applecare twice over three days and the last person had it nailed.
The printer queue got corrupted and only could be completely rooted out by a "scorched earth approach":
Option click on the space under listed printers and delete/reset all.
Option go menu to libraries and check that printers folder is empty.
In the the printers folder under libraries for the boot disk, delete the folder for the offending printer (in my case HP).
Then go back and add back the printer, and reinstall the approapriate driver. I also had an issue with how to connect my printer, IPP or Jetdirect sockets.
I'm good to go now and dr document, thank you for your help and hand holding.