MX922 print quality poor wavy lines,. How to fix?

[wkelble]

My Pixma MX922, now more than 2 years old has very poor print quaity. I've run alignments and cleanings but it still prints with very wavy lines (vertical and horizontal) and characters have faint shadows like a double impression. How can I fix?

Many thanks for any help,

[lhess9605]

I tried the thicker paper and automatic head alignment.  I had to do it twice but it worked perfectly.  I did change from standard print to best print and the quality is great.

[luckorskill]

The only thing that seems to work for me is printing using the "High Resolution Paper" selection instead of "Standard". The printing takes longer and uses more ink, but the wavy black print problem is gone

[Chris_N]

Regarding the nozzle check scan posted by "GES" on page 1, 4th post from the top. 

If head cleaning and head alignment do not solve the problem then I strongly suspect that the black nozzles are heat damaged. I have seen this problem with the Pixma 7250 a few times. Heat damaged black noxzzes typically print in a bow pattern and the print looks fuzzy and not sharp. Vertical lines look misaligned.

The only solution would be to buy a new printer or a new print head, 

Kind regards

Chris

PS WARNING. There are a lot of cheap print heads sold as "New" on E bay from Asia that have been removed from discarded printers and cleaned and repackaged to look new. They are typically burnt out and damaged print heads and you will waste your time and money. Only purchase a new print head from a reputable source.

[psarahtonen]

I tried LBD's suggestion above (the clipped corner paper) and it worked!