Half of page printing different colors than other half

[Idoartsywedding]

When I print a full page of say labels,  the left half of the page prints a different shade than the right side - new cartridges hasn't help. calibrating and cleaning either...any ideas?

[SHThompson]

A picture would help.

When you print built in pages through the operator panel do you see the same problem?

[Idoartsywedding]

I work in corel draw and print tons every day, it is mostly on these labels where they are a light ivory color - they are identical but one have prints a more yellow tone than the other have...always left side different than right side, not top and bottom different. And since the order goes to the same customer, it needs to be the same...

[Copier-Pro]

If you have changed the toners with no effect i am going to take a wild change and say maybe just clean the second transfer roller.This roller is a spongy roller that is normally fitted to the rear door of the printer and makes contact with the ITB unit of the machine.I will out for your post and try to assist as best as i can.

[SHThompson]

Do Not Use any solvent on the Secondary Transfer roller, the only way I ever clean these is with a toner vacuum.

The roller will be very spongy and if you use any liquid cleaner it might damage the roller.

If you can print PQ diagnostic pages that will help determine if the problem is with a single color, the secondary transfer roller would cause issues with all colors.

[Idoartsywedding]

Thanks, so...what is a PQ diagnostic page?