Canon Pixma MP640R printing out in purple instead of red

[robson.leopoldo]

I use the german refil method with my OEM cartridges. I've been refilling them without problems for about 5 times. However, suddenly the red color became in purple (I can't get red again). I've already checked any leakages, reset all cart and refilled them again but it did not solve my problem.
Does anyone have an idea how to solve it ?

 

[jtoolman]

Did you do a nozzle check?

 

[stratman]

It is possible to have cross-contamination between ink channels inside the print head (amongst other potential issues). You've said you've checked for leakages - have you inspected for pooled ink on the print head? Were your cartridges over-filled and leaked?

As jtoolman suggested, print out a nozzle check and post it here using the "Uploads" function found in the toolbar towards the top of this page. Do not check "resize image?"