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PRO-300, new printer; problem with haze streak at top of page


Hey, Canon & friends!
I bought a Canon PRO-300 printer recently and it's amazing BUT after just ~200 prints, I started having this specific issue


When a photo I'm printing has a lot of black/dark color at the top of the page, it was leave a light haze line; only at the top though.


I've pictured the issue (outlined in red):

This haze streak is not part of the photo.


When performing a nozzle check, all seems well EXCEPT that the far left side of the photo black is not straight. 

I've pictured the issue (outlined in red):


I've tried aligning the print head both AUTO and MANUALLY to no success of fixing this nozzle check issue.



Do you have any idea what the problem might be? Faulty ink cartage? bad print head?

Any insight is helpful!


Thank you!!!!!!





Product Expert
Product Expert

Hi kamdag,

This issue can occur if the timing strip/encoder is smudged.  Please follow the steps in the following article to clean this:

If you continue to have difficulties, please contact our support group using the following link:



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