Vista - RE: Vista print spooler problem with MC2400W and MC2430DL printers

I understand your concern..

This is the problem with Microsoft.
Okay, leave it..

I will help you resolve your issue. I understand that you are able to print
only after restarting the computer. Am I correct?

If it is, then follow the steps below:

Follow the steps below to restart the spooler.

1. Click Start >>All Programs >> Accessories >> Run.
2. Type, SERVICES.MSC in the box and press Ok.
It will open one window with so many services listed.
3. Search for the service "Print Spooler".
4. Right-click on Print Spooler >> Click on Restart.

And, then

1.Click Start, and right-click Computer.
2.Click Properties, then click Hardware. (or you can see the Device Manager
directly here on the lefthand pane)
3.Click Device Manager.
4.Double-click the Universal Serial Bus Controllers branch to expand it.
5.Right-click USB Root Hub, and then click Properties.
6.Click Power Management.
7.De-select the Allow the computer to turn off this device to save power
check box.
Note: If the Root Hub is listed twice in the Device Manger, perform the
steps 5 to 7 on the second entry.

8.Click OK, and close Device Manager.

After that, please restart the computer and then try to print.
I hope, this should resolve the issue.

Please let me know the result.....