Canon C70 - Manual (Page 342)

13-34 Troubleshooting Chapter 13
Blue looks like purple.
Blue prints out as purple because of the difference in colour
technology used by the screen and the MultiPASS C70; the screen
uses RGB (Red, Green, Blue) colour and the MultiPASS C70 uses
CMYK (Cyan, Magenta, Yellow, Black) colour. Due to the technology
differences, when cyan and magenta are mixed together, blue prints
dark blue or purple compared to the screen.
❏ Within the MultiPASS printer driver, selecting a matching process in
the Color dialog box will result in a lighter blue. If you are not using
screen matching, decreasing the amount of magenta by 30%
produces a royal blue. (
1 MultiPASS Suite Software User’s Guide)
❏ If you are just looking for a nice blue colour, try cyan. It prints
beautifully and fast, and is available in almost all applications that
support colour. (
1 MultiPASS Suite Software User’s Guide)
Colour images are missing some detail.
Check to see if your MultiPASS printer driver is set to Plain Paper,
Color Mode, and Halftoning=Diffusion.
❏ If so, change the Media Type setting from Plain Paper to Coated
Paper. ( 1 MultiPASS Suite Software User’s Guide)