orizzontal white lines when I print in black

Archived from groups: comp.periphs.printers (More info?)

I have a canon 8200 bjc, I printed a lot in black and now when I print in
black appears white orizzontal lines! I tried to clean the printhead with
the apropriate botton via computer, I re-tried and re-tried a lot of
times but orizzontal lines remains! The allineament of the printhead is
ok too. So I think that the problem is something like a lodgement that
don't allow ink to pass fluently!
Someone told me that I can solve the problem dipping all the apparate
regardarding printhead and ink-box lodgement into water or into
ammoniaca. What do you think about this metod? I would olso attend the
all apparate is completely dryed, in your opinion how many times I have
to attend? Is it good this metod? And in your opinion what is better?
whater or ammoniaca?
Thanks for the attenption and sorry for my english
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