4.Note that the image enhancement settings are automatically reset to default values after a certain time, so you may get a different result from copying the same original if you have not checked the settings before starting the job.
5.If you scanned to a PDF file, try opening the PDF file in Adobe Acrobat and saving it as a PDF/A file. For more information, see http://www.adobe.com/products/acrobat/standards.html (English only).
6.For optimum color results, clean and calibrate the scanner as indicated in Scanner maintenance on page 156.
7.Avoid placing the scanner in direct sunlight or near sources of heat or cold.
Color fringing
The problem called “color fringing” occurs when the scanner is affected by incorrect paper advance and/or miscalibration. Nevertheless, some amount of color fringing is unavoidable, especially at high scanning speeds. It can be seen at the borders of sharp black text over a white background, as in the example below (original on the left, scanned image on the right). Please note the black arrow indicating the scanning direction.
Actions
1.Repeat the scan after increasing the scanner’s resolution (choose Max quality if scanning, Best if copying). Turn your original 90 degrees, if possible, before scanning it again.
2.If the problem persists, clean and calibrate the scanner as indicated in Scanner maintenance
on page 156. Repeat the scan at a high resolution (Max if scanning, Best if copying) and check whether the problem disappears.
3.If the problem still persists, you can diagnose this issue by analyzing the patterns 6 and 8 (A to E) of the diagnostic plot. The black horizontal lines appear slightly colored at the top and bottom of each end (in the example on the right, below). Normally, they look red at the top and blue or green at the bottom, but it could be the other way around.
If you see this effect, call HP support and report “color fringing problem after calibration”.
Clipping in dark or light areas
Sometimes you may see that the scanned file or copy of one of your plots has lost detail in light or dark areas (or both), as in the example below: original on the left, scanned image on the right.
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