Konica Minolta HP PageWide XL 4500 MFP User Guide - Page 112
Variable line thickness or missing lines, Inaccurately reproduced colors, Image, Mixed
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Actions 1. Repeat the scan or copy, setting the content type to Image, reducing the background cleaning to 0 or turning the original 90 degrees before scanning it again. 2. If the problem persists, clean and calibrate the scanner as indicated in Maintenance on page 134. If calibration ended without errors, proceed to analyze again pattern number 9 and modules A through E of the diagnostic plot. 3. After analyzing pattern 9, if you see some color differences between left and right sides of the bars for neutral and vivid colors, call your support representative and report "small color differences between adjacent CIS modules". Variable line thickness or missing lines When scanning some CAD plots at Standard resolution, mostly when working with grayscale or black-andwhite prints that contain very thin lines, you may see a variation in line thickness, or even some missing lines, in some places: Actions 1. Repeat the scan or copy using a higher resolution (High or Max if scanning, Normal or Best if copying). You should also set background cleaning to 0, or set the content type to Mixed. You might also deactivate the automatic de-skew as explained in Copied or scanned image is very skewed on page 111. In case you were working in black-and-white mode, we recommend using grayscale instead. 2. If the problem persists, turn the original plot 90 degrees before scanning it again. 3. If the problem persists, clean and calibrate the scanner as indicated in Maintenance on page 134. Inaccurately reproduced colors You have to deal with several variables if you want perfect color matching between the original you are scanning and the copy or scanned file you obtain as a result. If you find undesired colors in cases like the example shown below (original on the left, scanned image on the right), you can follow these guidelines. Actions 1. Make sure that you choose the correct paper type in the scan settings before scanning. 2. When dealing with copies, you must take into account that good color matching between a given original and its copy can be achieved only if both are printed on the same type of paper. In the case of scanned files, good color matching can be achieved only if your monitor is color-calibrated or compliant with sRGB or AdobeRGB standards. 106 Chapter 7 Scanning and copying ENWW