HP DesignJet T2600 User Guide - Page 129
Variable line thickness or missing lines
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Sometimes the color mismatch between adjacent modules can be enormous, showing a serious scanner malfunction, as in the following example. 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 Scanner maintenance on page 183. 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-and-white prints that contain very thin lines, you may see a variation in line thickness, or even some missing lines, in some places: ENWW Scanner troubleshooting 121
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