HP Scanjet Enterprise 7500 Flatbed Scanner - Manual (Page 40)

Error Description
Paper Error The document feeder cannot pick up the paper or the paper is jammed. Follow these
steps to resolve the error:
1. Remove the paper from the document feeder.
2. Sort through the stack to make sure the sheets are not stuck together.
3. Make sure the paper meets the size and weight specifications, as specified in the
scanner User Guide.
4. Verify that the roller assembly and separation pad are installed correctly.
5. Replace the stack of originals and try again.
Hardware Error A hardware failure occurred. Press the Power ( ) button to turn off the scanner, wait
30 seconds, and then turn on the scanner. If the message is still displayed, see
www.hp.com/support .
Basic troubleshooting tips
Simple issues such as smudges on the scanner glass or loose cables can cause your scanner to
produce fuzzy scans, operate in an unexpected manner, or fail to operate. Always check the following
items when you encounter scanning problems.
● If scans are fuzzy, check to see if the scanning strip to the left of the scanner glass is dirty or
smudged. If so, clean the scanning strip.
If you are 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.
● 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 you have connected the scanner 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.
● Make sure that the scanner buttons are enabled.
● Turn off the scanner, wait 30 seconds, and then turn on the scanner.
● Make sure the automatic document feeder (ADF) hatch is closed.
● Restart the computer.
34 Chapter 5 Troubleshooting ENWW