[Misc] iR-ADV C7260 is Causing Paper to Darken

[QC91]

we have iR-ADV C7260, and we noticed that pages that have color photos or drawing seem to have a light yellow tint to them, we have tested different brands of paper, but it remains we are using 20 LB paper have the paper setting set to Plain Paper, I will attach a photo any help would be appreciated

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