Win 7 64, SP 1. HP 6600 connected over wifi to network.
Printer was disconnecting from wifi when it went to sleep. Have replaced cable to phone line (with 2 wire) and established a static IP address. Printer working better. I did this adjustment in user's account login.
However, during this process, we have gone from having 2 printers in Control Panel (one for printer, one for fax) to having only 1 printer for fax. From an application (e.g. MS Excel) there are 2 printers available (one for printer, one for fax). In the Administrator account, there is also only one printer in the Control Panel, but it is for a printer.
What to do? Do I uninstall and then reinstall the printer?
(The problem is that there is no way to set the HP 6600 as default printer).