How many nozzles blocked before new head required?

[heyskull]

As the tiltle says how many nozzles blocked before you would need a new print head?
Just a little question as I would like to know as mine is now coming up 5 years old and has in total 5 blocked/dead over the CMYK.

I reckon if I knew then what I know now when we first got our printer their would be no blocked/dead nozzles.
Isn't it strange that the people who install your printer do not tell you properly how to keep it unblocked and clean, at least our installer didn't!

Thanks
SC

 

[henryp]

Generally, you replace the head when it can no longer provide the quality you desire.

 

[Fatboy]

I would also suggest that you go by quality of print only.I have produced pretty good quality with a lot more clocked nozzles.