Ricoh 2018 Transfer roller mark

[scully]

Most times in the past I have had this on the first copy out and it has been the transfer roller assembly being the problem.
I do change the charge roller and transfer as in the PM Schedule and do not have the problem.
John
Uk

[nmfaxman]

I have replaced the charge roller twice and both OEM. I checked the contacts and cleaned them.
I am not messing with anybody on this site.
I have been fighting with this machine for 3 months.
My customer is running out of patience and I am running out of ideas.
It is just a small box with low volume.

The most difficult problem has the simplest solution.
The hardest problem is finding that simple solution.

[cmpelser]

try turning transfer roller cleaning off.

[Guest]

Hi

Replace toner....

[unisys12]

Sorry to break this to yeah, but we had another one come through the shop yesterday. I swapped around transfer rollers, even place a new one in and it did not help. Took a closer look at the drum unit and found that it was coating. I took a transfer roller, marked it, laid it on the back of the page and rolled it start to finish of the mark. I found that it fit the diameter of the transfer roller. We had to do a full PM on the unit, so I was playing around with it before they did it.

What I suspect is going on here is: By the drum being covered in toner, the transfer roller is getting coated as well. This is transferring to the lead edge on the back of the first copy. After that, the transfer roller is cleaned off. That lets you know it's not the roller or anything to do with it. After performing the PM (Drum, charge roller, brush, Dev, fuser rebuild and cleaning) the problem went away.

So now, we have to find what causes the drum to coat and that could be a problem with just about any of the items changed in the PM. Unless someone can come up with a solution for "nmfaxman" before then, we have a few 18's at the shop. I keep the parts replaced in the PM, so I can swap them out until I am able to reproduce the problem. That's going to be anytime soon though, because I have a ton of stuff going on right now. Sorry.

[max toby]

And the answer is...

either the transfer roller or the developer. I have three machines doing the same thing. Waiting for transfer rollers to come in in the morning. Hope that sloves the problem.

Peace
Max

[pspahr]

Seen it, Yet to resolve

Fresh DV.
If it were a simple fix I would have not posted.
I am begging for a solution.
I promised the good cutomer I would solve the problem.
I will not give up.

This will be no help, but I've seen this 3 times in the past year, myself.....No fix for it so far and it's driving me crazy. Out of curiosity, when you run multiple copies, do the lines go away? What I've seen is that only the first copy out has the lines and every subsequent copy is clean (or at least cleaner). Calling Ricoh has been completely useless, I prefer not to call them anyway as by this point you've gone beyond anything they would suggest. The only anomoly different between the 3 I've seen it in is that one only occurred after a cleaning blade screw fell out and got caught between the photoreceptor and the charge roller. This led to a PM (80k anyway) and the CQ issue. I suspected the bias board fried but the machine was swapped out when the customer decided they needed a new box anyway. By the time I got time to get to the machine in the shop it was gone.....I believe the Bias P/P was the culprit but I can't confirm that at this time.

BTW--fresh dev does not resolve this issue--occurs with OEM and non-OEM toners

[scully]

I would Change Transfer Roller as I have had this on the first Copy out if you ask for say 6 Copies.

John
Uk

[max toby]

Yep,

just the first copy has the mark. Subsequent copies are clean on the back. I did note however there were spots all over the front of the copy. Too few spots to be overtoning; possible (eep) toner, or stay with the transfer roller idea. Someone mentioned a transfer roller cleaning roller, Maybe my glasses are broke, can't see one of those anywhere. I will post results of transfer roller change.

Thanks
Max

[scully]

The Transfer Roller does not have a Cleaning Roller but the Charge Roller does.
There is also a Fuser Assy Cleaning Roller.

John
Uk

[nmfaxman]

I went back to this machine a couple of weeks later and the mark had reduced to a shadow.
One month later it was gone.
Turned out the customer stopped printing checks through the machine and after time worked itself out.

[blackcat4866]

Do you suppose that it could have been some sort of a surface coating on the checks that was being picked up and moved around within the machine? I've seen this effect with coated papers, NCRs, labels, and color copies reprinted on a B&W.

=^..^=

[copytec]

Hi
the problem is in PCU .I dont shure what: OPC,charge or dev.
but I have the same problem on A-180.Mono comp. toner.
Problem hapen when you put for use toner (from fax 2700 in cartrige A-180)
I not yet solving that problem but I suspect on charge and OPC.

[max toby]

Stop the presses.

O.K. here is the scoop, are you ready....

Change the transfer roller. Copies are perfect. Other than that little prob, these are great little machines.

Thanks for all the help.

Peace
Max

[copytec]

Yeah
I solve the same problem on A-180.
Put the new cartridge OEM and the ghost go one.