[cups.general] HP F4180 prints blank pages

[Haim Roitgrund]

My HP F4180 only prints blank pages.
It can, however, print out a test page, so there's no issue with the ink or
hardware, it seems.
Also, it used to print properly in the past.
I run Ubuntu 10.04 (Lucid Lynx). This was the case also before installing
this latest version.

I've run hp-check, but the program ends up with no warnings or findings.
Likewise, the HP applet ends every print job with a 'completed' status,
seeming to think all's well.

The only remote clue I've found so far: HP's troubleshooting tool noticed
that the page format is 'letter' (small 'l') according to the printer
settings in System>Printing, but 'Letter' (capital 'L') according to the
Open Office printer properties dialogue box launched when trying to print.
The troubleshooter referred to this discrepancy as a possible 'alignment'
issue.
Could this possibly account for the failure to print?
If so, how could the two page size descriptions be made identical (they come
from drop down menus which I don't know how to access)?

Any other leads?
Thank you.

-- 
Haïm Roïtgrund
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