We do seem to have a similar problem, As I said I have this problem on 2
computers both are connected to the printers via wireless. I have Microsoft
XPS Document Writer shown in my printer line up,a lexmark 5400, a cannon
ip4200, and a cannon mp160. I don't think this is a problem with all the
printers and the microsoft image writer as well especially since after a
restart they all come back. I have been fighting this since June and could
use some help.... By the way I deleted INFCACHE.1 as was suggested in other
articles but this morning I could't get my printers and the INFCACHE.1 was
still not there now after a reboot the printers are back and that file is
still not back.

"guydel" wrote:

> I have a similar problem with a HP all-in-one C5180 over a wireless network.
> After a setup works fine for days. Then even without using the printer I get
> messages from the task bar that HP services, like image monetoring,
> networking shutting down. When this happens I cannot access my HP programs; I
> get no HP printer detected. This will persist even if I reboot. The HP
> verifying tool for driver version cannot even find HP drivers on the
> computer. My other computer with XP however is still operationnal so the
> problem is with Vista. I tried to explain this with HP chat but they provided
> solution to setup the drivers, thus wortless. Appreciate any comments if you
> find a solution thanks
>
> "Broyle" wrote:
>
> > I have 2 computers running Vista and have the same problem on both. Sometimes
> > when I start up Vista can't find my installed printers. If I go to control
> > panel and click on printers I get nothing. When this happens I have to
> > restart windows sometimes numerous times before I get the printers.