DP-8035 getting "burned" speckles on drum

serviceman · 07-07-2009

There is toner specks all over the clients drum. It doesn't wipe off easily, if you run your finger across it, you can feel it on there like it is burnt on, and there for having the image of copies/prints look bad. I was able to buff the drum really hard and the image finally came off. The drum and drum blade have been replaced along with the developer. All wires are clean. This seems to occur every 3 to 4 weeks. Again, after I buff the drum it is fine. I can run several hundred prints and there is no sign of the defect coming back while I am there. Any idea's?

scepter2112 · 07-07-2009

Might find out if customer is using mailing Label. If you can buff it off it is probably foreign substance on Drum, good indication is the registration roller have anything on them.

copierdude · 08-04-2009

I've seen this problem caused by third party toner. You need to replace the toner and the developer and make sure it's "R" model stuff.(DQ-TU38R and DQ-Z240R)

Duke · 08-05-2009

	Quote:			Originally Posted by serviceman
	There is toner specks all over the clients drum. It doesn't wipe off easily, if you run your finger across it, you can feel it on there like it is burnt on, and there for having the image of copies/prints look bad. I was able to buff the drum really hard and the image finally came off. The drum and drum blade have been replaced along with the developer. All wires are clean. This seems to occur every 3 to 4 weeks. Again, after I buff the drum it is fine. I can run several hundred prints and there is no sign of the defect coming back while I am there. Any idea's?

Are you in a high humidity location. I would replace the corona wires and the charge grid. The first thing on these is to replace the corona wires, if you talk to panasonic that is the first thing they ask. I stock the wires for my customers by the dozens. They do burn easy......Duke

Vista Tech · 08-05-2009

	Quote:			Originally Posted by scepter2112
	Might find out if customer is using mailing Label.

Its a toss up between this and 3rd party toner imho. I've seen this before on machines where the customer runs labels thru and it ends up lifting somehow and being stuck to the drum.

serviceman · 08-06-2009

Thanks for the reply's. I will give this another try with ya'lls advice!

Urushiol · 09-30-2009

Hey service man, I am having a similar problem on our Panasonic dp-8035/45/60 machines. For me its not isolated to one machine, it is occurring on every one of these machines in the field, new ones, used ones, OEM drums, non-oem drums, OEM blades, non-oem blades. If you saw one of these drums from a distance, you might think someone forgot to put the drum blade in, and tried to use the machines, but upon closer inspection you see that the substance, whatever it is, is much too resilient to be cleaned off by a blade.

It starts showing up around 30k, and the machine becomes unusable around 40k. I suspect it is the toner causing this, as we are using non-oem. I have attached a picture of the an effected drum, sorry its not the best as its a cell phone pic. In the pic you can see the drum is nearly covered(it stops a bit before the edge of the drum, right at the edge of the developer brush). and there are 3 clean streaks in the middle where the separation claws are. It looks like the substance is black, but its actually very brown. If I scrub it with an alcohol cloth, the cloth turns chocolate brown, not black.

Were you able to resolve this problem 'serviceman'? Also what brand of toner are you using, i'm curious if we are using the same one.

Thanks
Rush

(ps we have 20+ effected machines, most are new(30k on them) but some are older. and we are using 'r' drums and developers.)

mjunkaged · 09-30-2009

Guys: we were told in school that Panasonic has a lock on the factory where real panasonic toner is produced. What we were told is the Pan. molecules are much smaller than aftermarket compatible toners. I believe the resulting larger developer 'brush' formed rubs away the clear coating on the drums prematurely.
Not only will non-oem toner ruin drums, as stated above, but the same phenomenon happens on the smaller segment machines that use the dinky little '60k' drum. Truth be told, under ideal conditions you MIGHT get that many out of it, I wonder if non-OEM drum may last a bit longer, but bottom line, the smaller DP mono copiers do NOT like being run up to their max monthly volume......need a DP8035 or bigger to run real volume in a real office.

serviceman · 09-30-2009

Urushiol-

Not sure if the client is "fixed" yet. The defect usually returns a month and a half later-We have about 3 more weeks to find out if it comes back. I am not sure what manufacture we got this toner from as we are trying out everybody's right now and the label wasn't marked with the manufacturer. We are now tracking all non oem toners to try to narrow down if it is a certain manufacturer or not. Do you use the same company for your panasonic non oem toners? And who?

As of right now we replaced the develper with OEM and the toner OEM at the same time. Again, we will know if this helps in about 3 weeks.

JVergin · 09-30-2009

I have had one customer run a certain type of transparency through their copier (a 3030 / 2330 series) and came up with the same problem. The transparencies they were using had some sort of glu or sticky substance on one side of it which then transfered to the drum. Asked them to choose a different brand which is slick on both sides problem never returned.