Gradient pale problem in MP C4500

[maikel safwt]

Gradient pale problem in MP C4500 i try to change the transfer and the side separation roll no change
Thanks alot

[slimslob]

Run ACC in User tools. Do Copy and all Print resolutions. If that does not help, replace the ITB.

[Gift]

Have you tried another/fresh stack of paper?

[JonManchester]

I Second the ACC, I would thoroughly clean all the optics first then when you do an ACC place a few sheets of paper on top of the printout before you scan and you will see better results. Also check the PTR if its past yield i'd change it.

[Debs1964]

Check the springs that tension the PTR towards the ITB, one of them may be out of position, otherwise it could the the pivot point of the transfer/separation casing.
Have you checked the image on the belt, I'm guessing it's OK, that looks like PTR problem

[impetus73]

When I get pale prints on those machines, and ACC fails because of it, I manually adds toner using SP 3015, you sometimes have to run it twice or more, to get it good.

I suspect the cause of the decline, is the developer degrading over time. I almost never have to change dev on the MPC line of machines, and the few that gets pale, I just refresh with SP 3015.

If all fails, replace the developer.

[Zeldaman]

Hi there!
Agree with Debs, check the PTR-casing. It gets "old" & cracks often.
Greetings...

[gear13z]

did you check your pump motor?

[petermuylle]

Hi there!
Agree with Debs, check the PTR-casing. It gets "old" & cracks often.
Greetings...

You can easely check by pushing the duplexunit inwards while printing a test page. if it comes out good (or at least better) it's the ptr pressure.