HP Designjet T2300 eMFP Printer series - Image Quality Troubleshooting Guide: English

Incorrect edge detection, mostly when scanning
tracing paper
Tracing or translucent papers can be scanned with your product with good results, although totally
transparent papers are not supported. Nevertheless, the resulting image may have extra margins or
some clipping of the content in some situations when detection of the edge of the paper is not accurate,
which may also happen when scanning plain paper if the glass plate is dirty. In order to avoid these
undesired effects, please follow these recommendations.
Actions
1. Carefully clean the scanner’s glass plate and the original to be scanned with a cloth. Turn the
original 90 degrees if possible and re-scan it afterwards. Remember to select Translucent as the
paper type at the scanner if your original is translucent.
2. If the problem persists, please calibrate your scanner, and re-scan your original again afterwards.
3. If the problem persists in the case of translucent paper, attach a sheet of white paper to the back
of the original to be scanned. Remember to select White paper as the paper type for the
scanner in this case.
A copied or scanned image is very skewed
Originals are often loaded into the scanner with some degree of skew. In order to correct for this
unavoidable problem, the scanner has a built-in automatic de-skew algorithm, which measures the skew
in the original and rotates the scanned image so that the result is perfectly straight. However, in some
cases the de-skew algorithm may increase the skew rather than correcting it. In other cases, the skew is
so bad that it cannot be automatically corrected.
To load the original with minimum skew, grasp the original with the image facing up and your hands at
left and right edges. You are recommended to avoid resting your hands or the original on the scanner's
input tray. Push the original into the scanner insertion slot until you feel the whole top border of the
original pressing against the scanner rubber rolls, which will load the original after a delay of 0.5
seconds. Now you can take your hands off the original. If you are not happy with the way the scanner
has grabbed your original, you can press
and try again.
The action of the automatic de-skew algorithm can be deactivated by pressing
, then , then
Scan preferences or Copy preferences (you might want to deactivate it in one case but not in the
other). You can also deactivate the automatic de-skew from the Settings button at every new scanner
job.
36 Chapter 3 Troubleshooting scan-quality issues ENWW
Scan-quality issues