01-20-2015 12:33 AM - edited 01-20-2015 01:03 AM
When printing, some lines come written with double letter effect: For example, the word "bad" looks like "bbaadd". The letters are so close that are almost on top of each other. This does not happen to all of the text on the page, but to many lines.
Printer is MX922. Print from Word doc (or any text editor) onto plain paper.
Already did all the steps in the Maintenance window (ie. cleaning, head alignment, nozzle check, etc...). No help.
01-23-2015 06:33 AM - last edited on 01-01-2018 04:01 PM by Danny
Since the alignments and cleanings did not work, you can try cleaning the encoder strip of the printer to see if this will resolve the issue. To do this, please follow the steps located here.
If you still experience difficulty after cleaning the encoder strip, the printer may require servicing; please call or email us at one of the methods on the Contact Us page for further assistance.
11-03-2016 02:25 AM
I have the exact same issue with a MG7120 and your hyper link to cleaning the encoder strip below does not seem to work. Where can I get the instructions on how to clean the encoder strip for a MG7120?
10-24-2017 11:40 AM - edited 10-24-2017 11:41 AM
I am having the same issue now for a while. Yesterday I removed the print head cleaned it to get all the old ink out. I wiped the ribbon as suggested. It still prints letters with a shadow.
Has anyone found a solution?
01-02-2018 08:38 AM
Thanks for catching that. Since that reply was posted in 2015, we've overhauled our web sites and some of the old links no longer work. We've updated the link above and you can also reach it HERE.
We hope this helps!
05-23-2018 08:35 PM
Hello! I had the same problem on an MG7170. Tried everything in the canon FAQ and nothing worked. I was going to throw the printer away when someone pointed me to "extreme printhead cleaning". I was told it was how the printer repair shops (not canon authorised) do it. With nothing to lose, I tried it and it totally worked! The printer now prints like new with perfect alignment on all colors including PGBK.
Here's the video illustrating the method:
Note: Pay attention at around 8:35. You must flush until you get a clean, smooth spray to clear all clogged particles because the clogged particles are what's causing the jets to misalign.
Another example: https://www.youtube.com/watch?v=J61WxOduqQg
If you have a spray steamer (I don't), you can try that too:
Note1: This problem has nothing to do with the encoder strip otherwise it will misalign on all colors.
Note2: This problem mostly happens on PGBK because pigment ink unlike dye ink dries with a hard residue.