Hi,
I'm reluctant to even bring this up because it's so darned weird.
I've got an HP OfficeJet 6310 (multi-function network device: printer, 
fax, scanner) that has worked flawlessly for a couple of years under 
Debian stable and testing.
I don't make use of the fax function, but both printer and scanner 
have "just worked" after I install the printer using the hp-setup 
script in interactive mode.
Then, recently on my Debian testing systems, there were some apparent 
hassles between foomatic and CUPS upgrades. Everything is back to 
normal after a couple of rounds of upgrades -- except for the fact 
that this one printer now only prints a wall of black when printing 
from a browser -- ANY browser. (iceweasel, midori, chromium)
The scanner function works fine. All other printers work fine. All 
other apps print fine to this printer. But if I try to print to this 
particular printer *directly from* a browser, all I get is a page full 
of black ink.
And here's the best part. If I print to file from a browser to create 
a PDF, and then open the PDF and print it to this printer -- that 
get's me a wall of black, too. (The PDF looks fine in the viewer, but 
it prints out all black.) But all other PDFs print out on this printer 
just fine. I can also copy contents of a Web page and paste them into  
LibreOffice Writer document, and that prints out fine -- other than 
the expected monkeying around with the page / text format.
Is this weird, or what?
I've removed the printer, purged its drivers and setup, re-installed. 
Nothing fixes it. I've also tried using the CUPS Web interface to 
modify the printer by assigning a different driver to it. I wanted to 
see if maybe a postscript driver would fare better. But the only 
OfficeJet 6300 printer driver listed in the CUPS interface now is 
hpcups 3.11.5. I think there used to be a slew of choices. Now only 1. 
And it doesn't work properly.
I don't even know what to make a bug report on. There are other Debian 
testing systems on the network that seem print just fine to this 
printer. They've had the same upgrades, but they're older 
installations of testing. (The two computers that are doing messed up 
printing are from a daily build image from mid-August.) I've found 
other irregularities with these recent installations. I wonder if d-i 
did something "funny" to the system configuration on these two 
computers during installation that is causing this behavior.
These two computers use Xfce and had XDM set as their default DM by 
the installer. (GDM had just become "obsolete" when this daily build 
was produced.)
I cannot for the life of me figure this out.
Can anyone suggest a way I can get this printer to work properly with 
browsers again?
Hey Gilbert,