Our PIXMA mx922 prints blurry.  I have already cleaned the encoding strip.  

When I print a black and white text document. some lines on a printed document are sharp and crisp, while others are faint and blurry.  These crisp and blurry lines alternate all the way down the page. 

When I print a mixed color and black text document (such as a screen capture of this current page), the color sections are sharp but the black ink sections are blurry as mentioned previously.

The blurry text almost looks like a double image of the letters.

Thank you in advance for any suggestions.