Installing and troubleshooting 11
● Make sure your computer meets the minimum system requirements. See the
box in which the scanner shipped. If you do not have enough hard-disk space,
remove unnecessary files or install the software on a different disk drive.
● If using a parallel cable, make sure you only use the power supply, cables, and
accessories supplied with the equipment or expressly approved by HP.
● If you receive a message such as “Destination Directory Is Invalid” or “Program
Folder Is Invalid” during installation, type a valid destination folder, find a valid
folder by clicking Browse, or restore the defaults. The destination folder name
cannot contain the following characters: /, \, :, ?, *,<, >, “, or |.
● If you need more advanced help with the interface connection, see "Using
interface connections" on page 12 for USB and parallel cable compatibility and
troubleshooting.
● If the troubleshooting information you need is not shown here, refer to the HP
Precisionscan Pro Read Me for the most recent information.
● If your scanner did not come with a parallel cable and you need to use a parallel
connection (you don't have USB), see the read me file for information on how to
purchase the correct parallel cable (HP part number C9874A).