I had the problem of receiving the "driver does not exist and cannot be updated from MS update site" or similar messages.
On win7 32 bit I solved the problem in the following way. There is a little magic but finally it worked. I believe it also works on a 64 bit system.
- download the file "mxp____c.inf_x86_neutral_845d850712ad81c3.zip" from here
- rename it to "mxp____c.inf_x86_neutral_845d850712ad81c3.cab"
- move the file to c:\windows\system32
- use the package manager to install it:
-- run a cmd prompt as an administrator
-- go to c:\windows\system32
-- execute the " pkgmgr /ip /m:mxp____c.inf_x86_neutral_845d850712ad81c3.cab.cab " command
- if it fails (it happened to me too), do the following:
- locate your printer in Start...