New iMac, can't connect HP 1315xi all-in-one printer

Question

iMac is Intel Core i3, 27", 3.2 Ghz processor speed - OS 10.6.4.
I've tried to install from disk several times, but can't get the printer driver installed. I Receive a message that the printer is 'currently being used by the user'''', you may not be able to use now. To use switch to user'''' & quite running HP apps'.
I've never had a problem using this printer on my G4 (previous computer). I don't know what 'user' they are referring to. I am the administrator, & I am logged in as such.
Do I need to check w/ HP, or Apple? Any suggestions? Workarounds? Thank you.

Answer 1

This is probably very simple. Open System Preferences-Print & Fax then highlight the printer on the left and click the - symbol below. This will uninstall it, then disconnect the USB cable. I would recommend doing a SMC and PRAM resets at this point. I will list instructions for that below. Next restart the computer and then plug in the printer. If the Mac doesn't see the printer and prompt you to install it then go back to Print & Fax preference click the + symbol and it should see the printer. From there it should be intuitive. If you still can't get it you have 90 days of free phone support with any new Mac, use it and AppleCare can probably help you get it connected. The phone number is in your owners manual.
_SMC RESET_
• Shut down the computer.
• Unplug the computer's power cord.
• Press and hold the power button for 5 seconds.
• Release the power button.
• Attach the computers power cable.
• Press the power button to turn on the computer.
_PRAM RESET_
• Shut down the computer.
• Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
• Turn on the computer.
• Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
• Hold the keys down until the computer restarts and you hear the startup sound for the second time.
• Release the keys.