printing with Epson 1520 grey colors are somthing green ..?

[rs]

does anybody know why?
is this an Epson disease?
i do have choose cy -7 in the printer optons
and if i want to print gray ~ 50%
i have to choose a color
C-50 M-52,5 Y-38,8 K-5

this works but ...

solutions?
reinhard

[rs]

does anybody know why?
is this an Epson disease?
i do have choose cy -7 in the printer optons
and if i want to print gray ~ 50%
i have to choose a color
C-50 M-52,5 Y-38,8 K-5

this works but ...

solutions?
reinhard