TS6120 prints yellow background

[twiddletails]

As of about a week ago my Canon TS6120 started printing a light yellow background no matter what I print. I didn't change any settings. Both the rear feed and the regular feed do this.  My documents do not have a yellow background.

[shadowsports]

Greetings,

What about a test page?

Have you performed a maintenance task?

Nozzle check, cleaning, etc.  It can also be a defective cartridge.

[twiddletails]

All of the above. The nozzle check printed a perfect sheet.

[shadowsports]

Greetings,

Thanks for the additioanl information.

Test page - good

B&W Docs - good

Are you using Canon inks? 

Tough one to solve remotely.

What types of files are you printing that come out yellow? (.PDF, .JPG, etc?

Does this happen in one application or all except document files?

Can you provide an example (image)?

Color management issue?

https://support.usa.canon.com/kb/index?page=content&id=ART170988&actp=LIST_RECENT#po

https://ugp01.c-ij.com/ij/webmanual/PrinterDriver/W/TS6100%20series/1.0/EN/PPG/dg-c_color_balance02....

Paper type is also a possible problem, example you select the wrong paper type for what is loaded. 

You mentioned "All of the above".  Does this mean you have tried another yellow cartridge too?   . 

[twiddletails]

Just tried something and it only does this when printing certain PDFs, which is what I've been printing lately. So it must be the file, not the printer. Very strange. Thanks for your input.