HPLIP Fax error 3002 on HP L7580 ethernet printer on Karmic

Added fax test output indicating a working fax component of the L7580 printer. Sure seems like a driver issue to me.

Installed hplip 3.9.10, printer works, scanner works but fax does not work. Still does not go "off hook" to dial out.

HP Officejet Pro L7580 connected via ethernet.

hp-check -t output below:

/****************************************************************************************************************/
HP Linux Imaging and Printing System (ver. 3.9.10)
Dependency/Version Check Utility ver. 14.3

Copyright (c) 2001-9 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

Note: hp-check can be run in three modes:
1. Compile-time check mode (-c or --compile): Use this mode before compiling the
HPLIP supplied tarball (.tar.gz or .run) to determine if the proper dependencies
are installed to successfully compile HPLIP.
2. Run-time check mode (-r or --run): Use this mode to determine if a distro
supplied package (.deb, .rpm, etc) or an already built HPLIP supplied tarball
has the proper dependencies installed to successfully run.
3. Both compile- and run-time check mode (-b or --both) (Default): This mode
will check both of the above cases (both compile- and run-time dependencies).

Saving output in log file: hp-check.log

Initializing. Please wait...

---------------
| SYSTEM INFO |
---------------

Basic system information:
Linux 9850 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux

Distribution:
ubuntu 9.10

Checking Python version...
OK, version 2.6.4 installed

Checking PyQt 4.x version...
OK, version 4.6 installed.

Checking for CUPS...
Status: scheduler is running
Version: 1.4.1
error_log is set to level: warn

Checking for dbus/python-dbus...
dbus daemon is running.
python-dbus version: 0.83.0

------------------------------------
| COMPILE AND RUNTIME DEPENDENCIES |
------------------------------------

note: To check for compile-time only dependencies, re-run hp-check with the -c parameter (ie, hp-check -c).
note: To check for run-time only dependencies, re-run hp-check with the -r parameter (ie, hp-check -r).

Checking for dependency: CUPS - Common Unix Printing System...
OK, found.

Checking for dependency: CUPS DDK - CUPS driver development kit...
warning: NOT FOUND! This is an OPTIONAL/RUNTIME ONLY dependency. Some HPLIP functionality may not function properly.
To install this dependency, execute this command:
sudo aptitude install --assume-yes cupsddk cupsddk-drivers

Checking for dependency: CUPS devel- Common Unix Printing System development files...
OK, found.

Checking for dependency: CUPS image - CUPS image development files...
OK, found.

Checking for dependency: DBus - Message bus system...
OK, found.

Checking for dependency: gcc - GNU Project C and C++ Compiler...
OK, found.

Checking for dependency: GhostScript - PostScript and PDF language interpreter and previewer...
OK, found.

Checking for dependency: libcrypto - OpenSSL cryptographic library...
OK, found.

Checking for dependency: libjpeg - JPEG library...
OK, found.

Checking for dependency: libnetsnmp-deve...

Updated HPLIP to 3.9.12. Everything installed fine, version running is 3.9.12. I have attached an updated hp-check.log file showing no warnings and no errors.

Scanning works, printing works but the printer will not go "off-hook" to send a fax. I can manually send a fax if I enter the numbers on the keypad, but through the driver, printer never goes "off hook".

Any ideas?

I tried The HP Photosmart Premium with Fax and installed HPLIP 3.11.1 from sourceforge. Nevertheless everything except PC-Fax works.