HP 9100 series - Manual (Page 176)

174 10 - Maintaining and troubleshooting ENWW
z Black dots or streaks
• Ink, glue, correction fluid, or an unwanted substance might be on the scanner glass, the
scanner glass might be dirty or scratched, or the ADF lid backing might be dirty. Try
cleaning the scanner glass and lid backing. See
Cleaning the scanner glass, ADF lid
backing, and ADF window for more information. If cleaning does not correct the
problem, the scanner glass or ADF lid backing might need to be replaced.
• The defects might be on the original and not a result of the scanning process.
z Unclear text
• Try adjusting the settings. Make sure that the resolution and color settings are correct.
z Size is reduced
• The HP software settings might be set to reduce the scanned image. See the product
software Help for more information about changing the settings.