Hp440 printer lines through colour

[Guest]

I have the same problem evenly spaced lines run through colour. I replaced both cartridges, but still have the
lines. I would appreciate any advice. I have an hp4440 series printer.

 

[HPrometheus]

When was the last time you ran the "clean print heads function".

 

[Guest]

Never, I dont know how.

 

[HPrometheus]

Try this :
http://www.ehow.com/how_4716724_clean-printers-print-heads.html

Let me know of afterwards you still have any issues.