HP Scanjet 4600 problem

I have over 10 of these scanners and they too frequently have hardware failures right out of the box. The good news is if you get a working unit they are reliable and very convenient to use. My users love them; unfortunately they are no longer made. Before you buy a new one as suggested I would strongly suggest trying the following in order: Test for hardware problems: -Unplug the USB and power cables. -Plug in the USB cable back in followed by the power cable. -The carriage on the scanner should move backward and forwards about an inch and the lamp should turn on. If this does not happen you probably have a hardware problem. See my last paragraph titled warranty replacement. Reinstall the software as follows: -Delete all of the software and drivers associated with this scanner. -Disconnect (or power down) the scanner. -Reboot the PC and reinstall the scanner software, making sure you follow the instructions exactly. Don?t plug in (or turn on) the scanner until you are prompted to by the installation instructions. -Before you actually try to use the scanner make sure you check the HP site for updates, download and install them. I have had a couple of scanners give hardware failures without the updates. Warranty replacement: If this is an HP factory refurbished unit or even a third party refurbished unit they should honor at least a 90 replacement warranty. My experience has been that HP and most other venders will pay for shipping both ways so don?t buy a new one until you at least try. Let us know if you have any other questions and please don?t forget to rate the posting.

That means your scanner has a problem internally. bring it to the nearest service center or buy a new one coz its much practical than paying a service fee more than the cost of a new one.