Scan takes too long
Part of the document did not scan or text is missing
Text cannot be edited
Error messages appear
Scanned image quality is poor
Scan defects are apparent
Scanner did nothing
Check the original
Make sure that the original is loaded correctly. For more information, see Load an original
on the scanner glass on page 14 or Load an original in the automatic document feeder
(ADF) on page 15.
Check the printer
The printer might be coming out of Sleep mode after a period of inactivity, which delays
processing a short while. Wait until the printer displays the Home screen.
Check the HP software
Make sure that the HP software provided with the printer is installed correctly.
NOTE: If you do not scan frequently, you can choose to turn off the feature.
Windows: Open the HP printer software. For more information, see Open the HP printer
software (Windows) on page 25. In the window that appears, select Print, Scan & Fax or
Print & Scan, and then select Scan a Document or Photo under Scan.
Mac OS X: Open HP Utility. For more information, see HP Utility (Mac OS X) on page 247.
Under Scan Settings, click Scan to Computer, and ensure that Enable Scan to Computer is
Scan takes too long
Check the settings
Scanning with higher scan resolution takes longer and results in larger file sizes. Use high
resolutions only when necessary. Lower the resolution to scan more quickly.
If you acquire an image through TWAIN on Windows computers, you can change the
settings so that the original scans in black and white. See the on-screen Help for the
116 Chapter 8 Solve a problem
TWAIN program for information. You can also change scan settings to black and white in
the HP scanning software for Mac.
Check the status of the printer
If you sent a print or copy job before you tried to scan, the scan starts if the scanner is not
busy. However, the printing and scanning processes share memory, which means that the
scan might be slower.