Canon G2020: Strange vertical lines

[justacustomer]

Three color lines (red, green, blue) apperances on every color photos. I 've run cleaning, deep cleaning, ink flush,...but it does not work. The nozzle check printed page seems normal.

Pls help. Thanks.

[BlueIris2]

I've got this, too.  Since no one's replied.  I'll have to find the answer somehow.

[Danny]

Thanks for joining the conversation! We appreciate the info, though we need to let you know that the PIXMA G2020 is not supported by our team here at Canon USA since that product isn't available in this country.  If you live outside the United States, please click HERE and select your country to find support in your part of the world.  Your fellow Community members are still welcome to offer their advice.

Thanks for choosing Canon!

[BlueIris2]

The original poster may have had the model you mention, but I don't think the model is relevant here.  I've got a PIXMA Megatank G4210.