Scott,
I have a Lexmark X6170, the version of the X6150 with an ADF (auto doc
feed). I've found that you can fix nearly all the printer software foibles
by unplugging the printer from the usb port and the power source, waiting
30 seconds, and plugging everything back in, but only after powering up the
printer and computer. (Either pull the printer plug out of it's power
socket or pull the power pack module out of the printer if it's easier to
reach.)
This is Lexmark's standard procedure for resetting the printer software, and
would have been what some Indian guy would have suggested you try if you
called their 800 helpline. Also, if you go to the Lexmark site, there is a
fax setup utility update that was made available for both the X6150 and
X6170, although I don't know if it is directly related to the problem.
If you know what operating system is being used you can download it here:
http://downloads.lexmark.com/cgi-pe...oads.lexmark.com/cgi-perl/downloads.cgi&&req=:::::
Copy and paste this link to your browser search window, at the site enter
your operating system and select the tab "patches" to download the patch.
Harry