Hi everybody.
First of all sorry for my bad english.
Then I've this printer with this problem.
Look at these images:



These are the settings for each pattern...(type of paper,quality of printing)
pattern 1 - High Resolution PAper,standard
pattern 2 - professional photo paper,standard
pattern 3 - glossy photo,standard
pattern 4 - common paper,proof
pattern 5 - common paper,standard
pattern 6 - common paper,high
pattern 7 - high gloss,standard
pattern 8 - common paper,standard
pattern 9 - common paper,high
In standard quality black is printed with alternate stripe(one with ink and one without,see pattern 8).
In high quality there aren't problems(pattern 9,sorry for overwriting)
But when I print a sheet with black together with other color(see pattern 4,5,6)black disappear!!
And when I set professional paper,black is printed like a green!!
Any suggestions?
It seems that the problem isn't related to clogging...
First of all sorry for my bad english.

Then I've this printer with this problem.
Look at these images:



These are the settings for each pattern...(type of paper,quality of printing)
pattern 1 - High Resolution PAper,standard
pattern 2 - professional photo paper,standard
pattern 3 - glossy photo,standard
pattern 4 - common paper,proof
pattern 5 - common paper,standard
pattern 6 - common paper,high
pattern 7 - high gloss,standard
pattern 8 - common paper,standard
pattern 9 - common paper,high
In standard quality black is printed with alternate stripe(one with ink and one without,see pattern 8).
In high quality there aren't problems(pattern 9,sorry for overwriting)
But when I print a sheet with black together with other color(see pattern 4,5,6)black disappear!!
And when I set professional paper,black is printed like a green!!
Any suggestions?
It seems that the problem isn't related to clogging...