PIXMA iP7220 printing pattern of blurry and clear lines

[Heathyrre]

When printed from Notepad the lines look like this:

As you can see it's printing blurry and clear in a pattern, about 5 lines blurry, 2-3 lines clear, 5 lines blurry, etc.

I've run all typical fixes: cleaning, deep cleaning, print head alignment, plate cleaning, roller cleaning, replaced all ink carts, and then removed all the ink carts, swabbed everything down and put them in again.

Any ideas would be appreciated, I'm at a loss. Machine is roughly 3 years old and has been inactive for about year, thinking maybe the printing head might be dead?

[ChooChoo]

Hi, I found a really weird workaround (I have MX726).

I discovered that if I print from a web browser (I use Chrome) then my documents are actually readable. There's still a slight blur, but the improvement is astronomical.

I'd be comfortable sending a letter with how well it improves when printed from Chrome.

[Ranchhand1]

Yup. Same problem; prints one line of text standard, next line of text bold (and blurry). Evidently no solutions from Canon, even though not only Pixmas do this.

You disappoint me, Canon.