On 08/10/2015 03:11 PM, Denis Heidtmann wrote: > No test page. Before I go through deleting and re-adding, I would like to > understand the relation between CUPS and Hplip. > > -Denis
CUPS does all the actual printing. HPLIP is a CLI and GUI front-end to ease HP printer administration for those who find the web CUPS admin page a bit confusing. HPLIP will: 1. Find HP printers using any interface 2. select the correct CUPS back end 3. select the correct CUPS driver, or provide its own, newer ppd if CUPS doesn't have one. 4. make it easier to see printer queues, print status, print ink supply 5. make it easier to align and clean print heads, 6. make it easier to set default print settings 7. If you have a multifunction printer, HPLIP will set up the SANE scaner back end as well. That said, I have noticed that each version of HPLIP prefers certain versions of CUPS. Thus, for distros that auto-update a lot (like Ubuntu), you can run into your situation. In HPLIP, on the "Printer Control" tab, it should have a message stating "Started/idle" with a "Stop Printer" button. If it says "Start Printer" , click it, provide the root user/password, to restart the printer queue. This can be also done via http://localhost:631/admin that should work. If not, reinstalling CUPS then HPLIP will reset any goofiness. http://hplipopensource.com/hplip-web/install_wizard/index.html to get the latest HPLIP package for your printer. Most package repos are horribly out of date or include stupid patches. Have fun! -Ed _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
