Have tried two brand new toners; still having printing problems:

[Kwitel]

I have tried two brand new toners and both seems to be producing papers with partial print.

The ink in the middle of the page is either very light or non-existent.

Ive gone through the cleaning settings already.

What else could be wrong here?

[Danny]

Hi, Kwitel!

So that the Community can help you better, we will need to know exactly which Canon printer model you're using. That, and any other details you'd like to give will help the Community better understand your issue!

If this is a time-sensitive matter, our US-based technical support team is standing by, ready to help 24/7 via Email at http://bit.ly/EmailCanon or by phone at 1-800-OK-CANON (1-800-652-2666) weekdays between 8 AM and 8 PM ET (5 AM to 5 PM PT).

Thanks and have a great day!

[Kwitel]

Sorry about that:

I am using the Image Class MF4150 with Canon toner.