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Awful black letters

Last response: in Computer Peripherals
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July 8, 2011 12:18:32 PM

Hi,

I've got a Canon MP640 ink since 10 months. Recently it started printing like this :

I ran all cleaning/fixing programs available in the printer, I changed the 2 black cartridges (small and big ones), no result.

What could cause this problem and how to fix it ?

More about : awful black letters

July 8, 2011 4:05:33 PM

Should be in warranty, replace it. Looks like the print heads are bad.
July 9, 2011 11:03:27 AM

I had run the cleaning programs before changing the black cartridges. Then I printed this page. Now, I ran the cleaning program again and the printing is now OK.

Weird o_O
!