PIXMA G7020 faded printing

[naushi]

I have a Canon Pixma G7020 - Dell laptop windows 11. I was getting faded printing, so I added all the 4 inks and filled all the 4 containers.  I tried printing again, but it printed half a page with dark ink but the other half page was very faded. I tried to do cleaning maintenance bit it failed during the process with error 5200. I managed to shut the printer, unplugged it and started after 10 minutes. Tried printing again and it barely prints anything. I also did nozzle check, print alignment but nothing helps. I don't have any options left. Please suggest what I should do. 

[naushi]

Ink flush went smoothly and printing is 80% better. Though It is still skipping some lines. It's not 100%

[DerrickL]

The ink flush softened ink that may have been in the print head nozzles, run another deep clean. 

[naushi]

I did another deep cleaning, and it again errored out with code 5200 - I went back and did another ink flush which went ok. I just printed a page, and it is still missing lines. Just an FYI that I replaced the print head a month or so ago. 

[naushi]

I replied to your last post. What more options am I left with. I have tried ink flush three times but deep cleaning keeps erroring.