Printer recently started printing blue streaks on any areas that had white print areas (color printing only).
These look like small blue smudges or streaks.
Printer firmware is up to date. I have tried calibration and cleaning as well as shaking all the cartridges.
All cartridges are HP OEM and are at the following levels: black 40%/cyan 70%/yellow 90%/magenta 10%
it only happens with blue ink on white background. I've checked the cyan cartridge visually, but don't see any problems with it.