Downloading drivers for HP LaserJet 4000 TN with win 7

You don't need to download them

CLick on start

Click on devices and printers

Now click on "Add a printer" at the top

Select "add a local printer"

Is it USB? If so click on "Use an exisiting port" Select USB in the list, if it uses a parallel cable (the very fat ones) select "LPT1". Now click next.

On the install printer driver, on the left hand colum for manufacturer - find HP.

Now on the right hand side - select printers and find "HP Laserjet 4000" and select PCL 6.

Should be good to go.