6-18 Troubleshooting Chapter 6Problem Possible cause SolutionHue changes The print head nozzles Clean the print head. Seemay be clogged with dust. page 7-5.An ink tank may be Replace empty ink tanksempty. as needed. See page 7-13.Printed blue Blue prints as purple On the PC, select Matchlooks purple because of the different colour (screen matching) totechnologies used by the provide a lighter colourPC’s monitor and the blue.MultiPASS C20: the monitoruses RGB (Red, Green, Blue) If you are not using screencolour, while the MultiPASS matching, decrease theC20 uses CMYK (Cyan, amount of magenta by 30%Magenta, Yellow, Black) to produce a royal blue.colour. Thus, the printedblue (a mix of cyan and If you just want a nice bluemagenta) looks colour, try cyan. It printsdarker and more purple beautifully and quickly,than the blue on the and is available in almostmonitor. all applications that supportcolour. See the MultiPASSDesktop Manager forWindows® User’s Guide.Colour images are You may not have the On your PC, make sure tomissing some detail optimum settings selected select Plain Paper, Colouron the PC. Mode, and Halftoning =Pattern. If these are alreadyselected, change the MediaType setting from PlainPaper to Coated Paper. Seethe MultiPASS DesktopManager for Windows® User’sGuide.