I have a Canon iP8750. It is less than 2 years old.
Some lines of black text are appearing blurred: line one is sharp, lines 2, 3 and 4 are blurred, line 5 is sharp and so on.
I have:
cleaned the nozzels, replaced the cartridges with Canon and non-Canon products, reinstalled the drivers and used a different PC, all without improvement. I have printed text in different colours, all are sharp, only black text appears affected.
On printing a test pattern I note the grid pattern at the top of the set of prints appears to be faulty:
The text "PGBK" is blurred but, whilst the grid lines at the top and bottom are OK, the vertical lines are split into 2 grey lines and the horizontal lines, whilst remaining single, are grey and not sharp.
I hope someone can tell me how to overcome this problem.
