Hello,

I have a Canon Pixma Pro 100 printer. Recently, white horizontal lines have appeared on my prints.

I ran the nozzle check and there were no lines in any of the colors. Regardless of that, I ran all the cleaning functions through the computer. I also manually cleaned the printer head with water, isopropyl alcohol, and ammonia (and various combinations of those three). The lines still appear on the prints. The lines appear on all photos.

Nothing has changed since the last time I successfully printed photos. I print through Print Studio Pro through Digital Photo Professional 4. I print using the Standard print quality (and always have so that is not the issue). I print on Canon Photo Paper Plus Semi-gloss. 

Is it time for a new printer head? I am willing to purchase one, but don't want to if there could be another reason for the lines.

Thank you for your reading my post and your help.

Julie