In the "Fax Setup Wizard" there's an option to indicate "No, I do not have a dedicated fax line." Whenever I select this, however, the next time I run the Wizard, it's been reset to the "Yes" option.
I cannot find any place to set this option, outside the Setup Wizard. Seems like there ought to be a way.
As it is, the machine will not accept incoming faxes if I'm not home to manually start the receive process.
I read, in a forum about a different HP AiO, that this could be caused by a dead CMOS battery, and would require specialized service/repair.
Any ideas (other than tossing the 2840 out the window, or sending it to HP for service, that is)?