HP DesignJet Z6 User Guide - Page 177
Vertical lines of different colors, White spots on the print, Colors are inaccurate, different
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Vertical lines of different colors If your print has vertical bands of different colors along it: 1. Try using thicker paper, choosing from the recommended paper types such as HP Heavyweight Coated Paper and HP Super Heavyweight Paper. See Order paper on page 141. 2. Try using higher print-quality settings (see Printing on page 59). For instance, if you have set the Print Quality slider to Speed, try setting it to Quality. 3. Alternatively, set print quality to Custom options, then Settings: Best and check the More passes box. This will cause unidirectional printing, which reduces the severity of the problem. White spots on the print You may notice white spots on the print. This is probably due to paper fibers, dust or loose coating material. To avoid this problem: 1. Try cleaning the paper manually with a brush before printing, to remove any loose fibers or particles. 2. Always keep the cover of your printer closed. 3. Avoid actions that may introduce dust into the printer, such as handling or cutting paper on the printer cover. 4. Protect your paper rolls and sheets by storing them in bags or boxes. Colors are inaccurate If the colors of your print do not match your expectations, try the following: 1. Check that the paper type you have loaded corresponds to the paper type selected in the front panel and in your software. See View information about the paper on page 35. 2. Tap , then , then Calibration Status to check the color calibration status. If the status is PENDING or OBSOLETE, you should perform color calibration: see Color calibration on page 88. If you have made any changes, you may wish to reprint your job in case the problem has been solved. 3. Check that the source color space of the source is correctly tagged. The most common color spaces are sRGB and AdobeRGB. If no color space is defined, then the one specified under > Default printing configuration > Color options will be applied. NOTE: The AdobeRGB space covers more colors than sRGB. For that reason, some bright colors may be achievable only if the image is tagged as AdobeRGB. ENWW Vertical lines of different colors 169