Problem

Possible cause

Solution

Hue changes

The print head nozzles may

 

be clogged with dust.

 

An ink tank may be empty.

Clean the print head. See page 9-9.

Replace empty ink tanks as needed. See page 9-17.

Printed blue looks purple

Blue prints as purple because

 

of the different technologies

 

used by the PC's monitor and

 

the MultiPASS C50: the

 

monitor uses RGB (Red,

 

Green, Blue) colour, while the

 

MultiPASS C50 uses CMYK

 

(Cyan, Magenta, Yellow,

 

Black) colour. Thus, the

 

printed blue (a mix of cyan

 

and magenta) looks darker

 

and more purple than the

 

blue on the monitor.

On the PC, select Match colour (screen matching) to provide a lighter colour blue.

If you are not using screen matching, decrease the amount of magenta by 30% to produce a royal blue.

If you just want a nice blue colour, try cyan. It prints beautifully and quickly, and is available in almost all applications that support colour. See the MultiPASS Desktop Manager User's Guide.

Colour images are missing

You may not have the

some detail

optimum settings selected on

 

the PC.

On your PC, make sure to select Plain Paper, Colour Mode, and Halftoning = Pattern. If these are already selected, change the Media Type setting from Plain Paper to Coated Paper. See the MultiPASS Desktop Manager User's Guide.

8-28Troubleshooting

Chapter 8

Page 216
Image 216
Canon MultiPASSTM C50 manual 28Troubleshooting Chapter