[problem] DCP-7040 + system-config-printer

[nenoro]

hi,

So i'm using gentoo but on arch i have no problem.

My problem is when i launch system-config-printer, it shows my Brother-DCP-7040 on the first window but when i have to choose the model, it doesn't shows it, i only see classic models:

i installed
brother-dcp7040-bin
brscan3
brscan-skey (if needed)

do you know how to manage to display my printer model ?

edit: after i try hard i finally fix my problem