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HP Customer Support - Knowledge Base

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HP ScanJet Pro 2500 - Basic Troubleshooting Tips

Simple issues such as smudges on the scanning strips or loose cables can cause the scanner to produce fuzzy scans, operate in an unexpected manner, or fail to operate. Always check the following items when encountering scanning problems.
  • If scanning a document that will be analyzed using Optical Character Recognition (OCR), make sure that the original document is clear enough to be analyzed.
  • Make sure that the USB and power cables are firmly seated in their respective connectors on the back of the scanner, and that the power cord is plugged into a working electrical outlet or surge protector.
  • Make sure the scanner has not automatically powered off. If it has, press the Power button to turn on the scanner.
    note:
    Change the auto-off setting by using HP Scanner Tools Utility (Windows) or HP Utility (Mac OS X).
  • Ensure that the scanner is receiving power.
    • Check that the green LED on the power supply case is on.
    • If the green LED is not on, ensure that power is available to the power outlet or surge protector that the power supply is plugged into.
    • If power is available to the power outlet or surge protector but the green LED is still not on, the power supply might be defective. Contact www.hp.com/support for assistance.
  • If a Scanner not found message displays when trying to use the scanner, turn off the scanner, wait 30 seconds, and then turn on the scanner. If the message still displays, the scanner may need to be reset.
  • If the scanner is connected to the computer through a USB hub or through a USB port on the front of the computer, disconnect the scanner and then reconnect it to a USB port on the back of the computer.
  • Windows: Make sure that the Scan button is enabled (see “Product accessibility” for more information).
  • Turn off the scanner, wait 30 seconds, and then turn on the scanner.
  • Make sure the document feeder hatch is closed.
  • Restart the computer.
If problems continue, it is possible that the HP scanning software, firmware, or associated drivers are out of date or have become corrupted. See www.hp.com/support to locate software, firmware, and driver updates for the scanner.

Test the scanner

Follow this procedure to test the scanner:
  1. Ensure that the power supply is securely connected between the scanner and a live electrical outlet or surge protector. Check that the green LED on the power supply case is on to verify that the power supply is functional.
  2. If the power supply is connected to a surge protector, ensure that the surge protector is plugged into an outlet and turned on.
  3. Press the Power button to turn off the scanner, disconnect the power supply from the scanner, and then turn off the computer to which the scanner is connected. Wait 30 seconds, reconnect the power supply to the scanner, press the Power button to turn on the scanner, and then turn on the computer.
  4. Try to rescan.

Reset the scanner

The scanner may need to be reset under the following conditions:
  • If an error message similar to Scanner initialization failed displays when trying to use the scanner.
  • If a Scanner not found error message displays when trying to use the scanner and turning the power off for 30 seconds, and then back on, did not resolve the error.
To reset the scanner, follow these steps:
  1. Close the HP Scan Software and HP Scanner Tools Utility, if they are open.
  2. Press the Power button to turn off the scanner, and then disconnect the power supply from the scanner.
  3. Wait 30 seconds.
  4. Reconnect the power supply, and then press the Power button to turn on the scanner.

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