mp2852 pressure roller worn prematurely

[Mark Bbb]

Hello there,
PR top layer was melted onto the surface of the hot roller.
sc545 is the call...
Happens with machines with counter 100K.
Checked bulletins, no info.
Anyone seen this also?
Greetings.

[Zeldaman]

Re: mp2852 pressure roller worn prematurely

Hi there!
Had this issue on several RUSSIANs. Changed the rollers, stripperfingers & the thermistors, checked the cables and pins. After that the problem never occured again.
Greetings...

[Mark Bbb]

Re: mp2852 pressure roller worn prematurely

PM table tells met to change the PR at 120K.
But PR of a 3030, mp2851, mp3350 easily makes 500K although they are the same PR's: AE020161.

[slimslob]

Re: mp2852 pressure roller worn prematurely

Sounds like someone has told the customer how to reset fusing unit SC codes and they keep resetting it repeatedly. This will cause the fusing unit to overheat to the point where the pressure roller is melted to the hot roller. If you ever tell a customer how to reset fusing SC codes, tell them not to do so more than once an hour.

[Mark Bbb]

Re: mp2852 pressure roller worn prematurely

Sounds like someone has told the customer how to reset fusing unit SC codes and they keep resetting it repeatedly. This will cause the fusing unit to overheat to the point where the pressure roller is melted to the hot roller. If you ever tell a customer how to reset fusing SC codes, tell them not to do so more than once an hour.

Nice thought, but how do you explain the PR has been worn at 105K without giving sc codes?
And with PR worn I mean that the orange layer underneath the black layer of the roller is already faintly visible...
I have never seen this at a 3030 so quickly only when it has made at least 500K...

[TonerMunkeh]

Re: mp2852 pressure roller worn prematurely

Ever since the MP2510 I have noticed the fuser rollers on the Russians and Orvals wear much quicker. Hot rollers barely last 90k.

[slimslob]

Re: mp2852 pressure roller worn prematurely

Nice thought, but how do you explain the PR has been worn at 105K without giving sc codes?
And with PR worn I mean that the orange layer underneath the black layer of the roller is already faintly visible...
I have never seen this at a 3030 so quickly only when it has made at least 500K...

In your first post you said it melted to the hot roller. My post explains how that can happen, regardless of the number of copies on the pressure. The customer kept resetting the SC code instead of turning off t he machine and calling in a repair request. Check the SC history when you get to the machine. You will probably find five or more fusing SC codes, all within minutes of each other.

[DougD]

Re: mp2852 pressure roller worn prematurely

Ever since the MP2510 I have noticed the fuser rollers on the Russians and Orvals wear much quicker. Hot rollers barely last 90k.

Beginning with the 1027 we had problems with the rear bearing on the pressure roller dislodging from the holder and causing calls for wrinkles/not fusing/jamming.
Comparing the roller AE020086 from the AF220/270 to the new part the only difference we could see was the shorter distance from the end of the shaft to the seating shoulder for the spring.
The old part is about 30 percent cheaper, lasts longer, doesn't wrinkle up like the new part and is a direct replacement for AE020161.

[copyaction]

Re: mp2852 pressure roller worn prematurely

Beginning with the 1027 we had problems with the rear bearing on the pressure roller dislodging from the holder and causing calls for wrinkles/not fusing/jamming.
Comparing the roller AE020086 from the AF220/270 to the new part the only difference we could see was the shorter distance from the end of the shaft to the seating shoulder for the spring.
The old part is about 30 percent cheaper, lasts longer, doesn't wrinkle up like the new part and is a direct replacement for AE020161.

funny thing, I had that exact problem on a 2022 just last week.
so you are saying the 220 roller will fit and the bearing won't pop out of the holder?

[DougD]

Re: mp2852 pressure roller worn prematurely

funny thing, I had that exact problem on a 2022 just last week.
so you are saying the 220 roller will fit and the bearing won't pop out of the holder?

It fits without any issues and lasts a long time. The hot roller AE011103 gets replaced when the toner buildup gets bad enough to cause CQ or jamming. Usually around 90 - 100K.
We also use the 270 feed, relay & reg clutches a lot instead of the originals on some (not all) of the newer models where they are a direct fit.

[StephenB]

Re: mp2852 pressure roller worn prematurely

funny thing, I had that exact problem on a 2022 just last week.
so you are saying the 220 roller will fit and the bearing won't pop out of the holder?

Had these problems too with 1027's. There is a new style lower bearing with grooves in the outer casing.
the groove prevents the bearing from "popping" out.

[copyaction]

Re: mp2852 pressure roller worn prematurely

Had these problems too with 1027's. There is a new style lower bearing with grooves in the outer casing.
the groove prevents the bearing from "popping" out.

do you have a part number for the new style bearing?

[DougD]

Re: mp2852 pressure roller worn prematurely

do you have a part number for the new style bearing?

According to the parts manual, the press roll bearings AE030053 for the MP7500 are the same dimensions 8X19X6 as the AE030030.
It's been a long time since I've worked on one of those brutes.
They might be grooved but I don't have any in stock to check.

[copyaction]

Re: mp2852 pressure roller worn prematurely

According to the parts manual, the press roll bearings AE030053 for the MP7500 are the same dimensions 8X19X6 as the AE030030.
It's been a long time since I've worked on one of those brutes.
They might be grooved but I don't have any in stock to check.

yes the AE030053 are grooved, I will have to try it out.

[glyn545]

Re: mp2852 pressure roller worn prematurely

Why in Hells name have any of you got customers with old Russian models still out in the field.....get your sales guys and gals out there and sell some new kit.