HP Scanjet Enterprise 7500 Flatbed Scanner - Manual (Page 50)

A problem with the scanner hardware might exist. 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. Disconnect the power supply from the scanner and turn off the computer. After 30 seconds,
reconnect the power supply to the scanner and then turn on the computer, in that order.
4. Try to rescan.
Originals are curling up in the scanner output tray.
Under dry conditions, lightweight originals such as those printed on carbonless copy paper may curl
in the output tray. To minimize curl, flatten curled edges on the originals before placing them in the
document feeder. If you cannot flatten curled edges, make sure the curled edges are facing down
when you place the originals in the document feeder.
The bottom of the scanned image is cut off
By default, the scanning software can scan media that is up to 356 mm (14 in) long. For longer
pages, the end of the document is not included in the scanned image.
Verify that you have specified an appropriate page size in the scanning software.
The scanned images have streaks or scratches
After each step, try another scan to see if the streaks or scratches are still apparent. If so, then try the
next step. For information on cleaning the scanner, see the Care and maintenance section.
● Check that the originals are clean and unwrinkled.
● Clean the scanning strip, which is to the left of the scanner glass.
● Clean the rollers manually.
An item loaded in the scanner jams repeatedly
● The item might not meet the guidelines for acceptable originals.
● The item might have something on it, such as staples or self-adhesive notes on the original that
must be removed.
● Make sure the paper guides touch the edges of the original.
44 Chapter 5 Troubleshooting ENWW