Color not aligned

[Alastair1618]

Color has suddenly become misaligned.
Am using genuine HP toner cartridges,  all 1/2 full or better

I have done several color calibration,  no improvement

I have seen reference to "resetting NVRAM",  cannot find instructions on how to do so

Any ideas would be greatly appreciated.

Thanks

[east2100]

Try Cold Reset first then NVRAM next all followed by three times of calibration.

If they all fail then you may have one or two bad toner cartridges which are not going well along with the others.

In such case you have to change them first but you don't need to threw away the ones which were replaced you can put them back one day and you'll find that they are happy with each other again.