PIXMA MX922 PGBK black ink printing double

[garygulbransen]

Win 11 wi-fi, no errors, print head removed and cleaned, replaced cartridges, etc etc and as I said my printout looks exactly like API posted above. Wavy lines through the middle of the black grid. The workaround suggested by someone is to print your documents in, in my case Dark Lime...evidently that eliminates the printer using the large black cartridge (labeled PGBK) and solves the problem. I did not clean the timing tape.

[Patrick]

Hi garygulbransen,

Cleaning the encoder/timing strip will resolve this issue.

To clean the encoder/timing strip, please follow the steps outlined in the following Knowledgebase Article available from our web site:

https://support.usa.canon.com/kb/index?page=content&id=ART142447

[chirag00]

Any other suggestions? My nozzle check pattern is exactly the same only for the PGBK. I have cleaned the timing strip twice and do not see any smudges or dirt on the strip. I have cleaned the printheads by hand, done numerous cleaning/deep cleaning cycles. No change in the pattern. Printing anything in black ink has either smudges every other line of text.