My HP Photosmart C7280 all-in-one printer leaks ink (all colors but more black and blue) when it powers on, while printhead cleaning. Also after replacing magenta inc catrige with a refiled one, it stoped printing any color and I found overflowed ink (more black) on the paper. When I receeded to head cleaning more overfowed ink apeard on the paper, stlill not any print apeared on the paper, and blue ink cartrige became empty although it was new. I disassempled the printer, I cleand the print head by hot water many times but nothing chenged. The printer is full of overflowed ink in the place where the head parks and also there are some big stamps of ink along the route fo the head. While I cleaned the disassembled head, I remarked leakage of ink at 12 small holes at the perimeter of the transparent membrane where the wavy microtubes of ink lead up. Pls anybody help!