[NAME]  INSTALL WINDOWS TIFF drivers as well as LPD drivers for windows features first. start  RUN OR WINDOWS KEY  R C:\Windows\System32\OptionalFeatures.exe Then directly connect the printers via usb and install the exact FULL PACKAGE drivers for the model. OFFICE JET 6700 OJ6700_1315-1.exe PIXMA TR8520 PIXMA TR8520   Once thats done you can remove the usb cable and go back to attaching the printer via the IP address which is something like 192.168.1.233 or 10.0.1.222 ETC aka RFC 1918 numbers. [IMAGE]  
I have 2 computers I purchased from Dell, an XPS 8500 and an XPS 8910. I also have 2 wireless printers, an HP Officejet 6700 and a Canon TR8520.  Both printers work perfectly with the XPS 8500, and until a couple of weeks ago they also worked perfectly with the XPS 8910. Now, however, the XPS 8910 insists that both printers are offline. They are not of course because they work fine with the other computer, and both computers are online for everything else. And clearly for the same reason, the drivers don’t need updating. I thought I might solve the problem by uninstalling the printers from the computer and then reinstalling. The Canon printer installation had 4 components, default, Series, Fax, and XPS. Uninstalling the default was easy, directly from the printer page in Settings, but the uninstall did not include the other 3 components and settings did not have uninstall buttons for these components. So reinstall did not work. Both HP and Canon communities have not been able to suggest working solutions.  Any suggestions from the Dell community would be greatly appreciated.
XPS 8910, two wireless printers, offline