bizhub 350 whit frayed drums

[DadO]

http://www.copytechnet.com/forums/After%20100-105k%20copies%20i%20replaced%20the%20drum.For%20th e%20first%20time.%20This%20drum%20didn%27t%20make% 20more%20then%208k%20copies%20without%20developing %20that%20black%20on%20one%20side.%20I%20thought%2 0drum%20whit%20fault.%20%20Then%20i%20ordered%20an other%20drum.%20This%20one%20didn%27t%20take%20mor e%20then%205%20k%21%20and%20same%20thing%20develop ed.%20%20%20Its%20a%20black%20color%20and%20it%20l ooks%20like%20frayed%20%20toner%20but%20cant%20rem ove%20it%20by%20whipping.%20I%20tried%20whit%20wat er%20and%2010%%20comes%20off.%20Alcohol%20react%20 bad%20whit%20km%20drum%20but%20it%20removes%2030%% 20and%20thats%20it%20%20I%20didn%27t%20replace%20d eveloper%20and%20machine%20was%20cleaned%20at%20th e%20first%20drum%20i%20replaced%20%20Charge%20coro na?Developer?%20Any%20thoughts?And proofs

http://picasaweb.google.com/dado.copy/PICTs#5252829248309354930http://picasaweb.google.com/dado.copy/PICTs#5252829256102151378http://picasaweb.google.com/dado.copy/PICTs#5252830094247962546http://picasaweb.google.com/dado.copy/PICTs#5252830094247962546
http://picasaweb.google.com/dado.copy/PICTs#5252829256102151378
http://picasaweb.google.com/dado.copy/PICTs#5252829248309354930



After 100-105k copies i replaced the drum.For the first time. This drum didn't make more then 8k copies without developing that black on one side. I thought drum whit fault.

Then i ordered another drum. This one didn't take more then 5 k! and same thing developed.

Its a black color and it looks like frayed toner but cant remove it by whipping. I tried whit water and 10% comes off. Alcohol react bad whit km drum but it removes 30% and thats it

I didn't replace developer and machine was cleaned at the first drum i replaced

Charge corona?Developer? Any thoughts?

[kalindd]

It's the transfer roller. At both ends of it, you will see a white plastic that should keep the roller at distance from the drum look at the damaged end to see. Change it or somehow repair it once I did it with a lighter :)

P.S. As I can see from this pic http://picasaweb.google.com/dado.copy/PICTs#5252830099922334050
It's a good idea to change the "distance" roll on both ends of mag. roller

[alexxcopier]

change the "distance" roll on both ends of mag. roller

[minimerlin]

You will need to replace the complete developer unit and load new developer. The unit has a failure of its seals on the end with the drum wear. It is not worth trying to fit new mylars etc.

[bigmark]

Its always a good idea to replace the drum and developer at same time on this model for PM purposes. and dont forget the filter... at least vacumm the filter off if you dont replace it.

[redime]

Its always a good idea ...
Dont forget also, when vaccing out the DV unit to carefully remove the metal plate that sits above the mag roller and get ALL the old DV out before dumping in the new stuff

[kmcopytech]

1\Replace round of the gap(ON developer );

2\Replace failure seals;

3\Replace developer unit...

[DadO]

And we can continue :). Drum isn't problem any more

I changed an developer and what did i get after F8....c 2557 atdc faliure.

Km representativ says that's what happen when u change an DV and drum in different intervals. But what he dont know that machine fried little resistor on DV connector(UN2) or atleast i think it is

When i make a copy, it jams right after top of page passed the fuzing section and show c2557. Did try to do F8 3 times more but no help.

Sm guides me to change an UN2 and since i cant get it before 14 days i tried to replace smal resistor whit simmilar resistor (Oms and voltage). Machine warm up for 3-4 minutes and shoot out an c2431 "can not blow fuze".

Dont get me wrong am trying to get it online even whit this metod since i have Bizhub 500 right next to it whit blown toner suply motor!(one that turn the toner bottle and cant get it under the 14 days ) on 680K and am lozing my hair so is the costumer....o my god help me on this one......

[redime]

And we can continue :). Drum isn't problem any more

I changed an developer and what did i get after F8....c 2557 atdc faliure.

Km representativ says that's what happen when u change an DV and drum in different intervals. But what he dont know that machine fried little resistor on DV connector(UN2) or atleast i think it is

When i make a copy, it jams right after top of page passed the fuzing section and show c2557. Did try to do F8 3 times more but no help.

Sm guides me to change an UN2 and since i cant get it before 14 days i tried to replace smal resistor whit simmilar resistor (Oms and voltage). Machine warm up for 3-4 minutes and shoot out an c2431 "can not blow fuze".

Dont get me wrong am trying to get it online even whit this metod since i have Bizhub 500 right next to it whit blown toner suply motor!(one that turn the toner bottle and cant get it under the 14 days ) on 680K and am lozing my hair so is the costumer....o my god help me on this one......
You need to replace drum and developer at the same time and run an F8 ...

If you have already tried F8 a few times you have probably cooked your DV ... but, go into tech rep, try resetting both the drum and DV counts and run F8 one more time and see what you get.

You need to reset counts, turn machine off completely, turn back on - go into tech rep and run the F8 ... might be able to get away with it. If you need to replace a drum or DV, and dont feel the need to replace in pairs -- just never reset the count, or never run the F8 on the DV :cool:

[bigmark]

if you vacuumed out the developer unit you may have toasted the ATDC sensor in the developer unit. on this model its very sensative. if you want to check, if you have another 350 you can swap drum and developer and test it. but you have to manually adjust the TCR levels in the tech mode. so look at the TCR level in old machine before putting it into the new machine.

[DadO]

That "cocked" sounds bad. I will try to clear the counters. will post u back and hope this will be lesion for someone else :o. Di350 can go without changing DV and drum, apparently this on new kick u in ur ba*s if u try to do that.... lesion learned

Now where did i put that orginal resistor...

[DadO]

I did try to clear counters but without no help.

Solution was is that i took an connector from old dialta 350, I cut the drum resistor and put the connector in housing of bizhub 350 dev unit coz they are same shape.

As i discovered buying resistor at electronic shop wont help u since they are different and that's the way it has to be :(.

Solution for u all if this ever happens is to order few of this un2 connectors

p.s
I didnt wacum the dev station i just pore it out plus i removed remaining dev but rotating it by 90*0 and turning gear in one direction. So very smmall amount of dev stayed. Problem is in security km placed. Very smart. i reccomend them for nobel prize:).
But never the less it would be beter to change all for quality reasons and I must say i agree whit them

Cheers!

[redime]

I did try to clear counters but without no help.

You arent understanding what I am saying, if you need to change the drum or DV and can not change both at the same time, you DO NOT WANT to clear the counts, or run F8 on DV.

[DadO]

I didn't clear the counters when i was changing drum whit out DV both times only this last time when i received an error .
I did try to clear the counters as u told me to try and to see what did i get.

When i got error msg 2557 after changing drum for third time i pored new DV in hope that i will solve 2557. Rest u know :)


If you need to replace a drum or DV, and dont feel the need to replace in pairs -- just never reset the count, or never run the F8 on the DV


I didn't run f8 after changing drums or clear the counters so dear redime I don't want to experiment on this any longer and recommend same for others :)

THX for help and THX everybody else

[alexxcopier]

tell me what kind of starter have used DV310 ot DV110 ???
1st is right 2nd wrong

[DadO]

DV 110 is for biz di1610,162,163,210,211...what kind is this question mate?

I see after 2 days that new drum has been started to deteriorate again and i can see its starting from the ends of transfer/charge roller. I took it for some cleaning. That's enough. This time Im writing an FPR.!

I ordered new dev completely. Wtf is happening.

[kalindd]

OK change the dv unit, but did you change the transfer roller?
Because I had the same issue changing the transfer roller fixed the problem.
And something else what toner are you using , OEM or other?

[fixthecopier]

I do not have it in front of me , but one of the other techs found the soft switch setting to turn off the change drum message. Then you just run until you really need to change it. if noone else finds it, I will try to post it tonight.

[redime]

I do not have it in front of me , but one of the other techs found the soft switch setting to turn off the change drum message. Then you just run until you really need to change it. if noone else finds it, I will try to post it tonight.
Change 418 to be HEX 50

[facatoros]

arkadaşalar ben turkey den hakan iki parca değişikliğil ile minolta 250f üniteleri yani toner sensoru değişimi ile bizhub 350 ile 250 takdık ve problem çözüldü 120.000-150,000 kopya sorunsuz

[alexxcopier]

DV 110 is for biz di1610,162,163,210,211...what kind is this question mate?
excuse me for silly question, but Di2510 and 3510 uses Dv110 instead DV310 and some people made mistakes with C 2557 as result :cool:

[DadO]

Im using OEM, no way that someone from company or my costumers put mexican garbage in machine. Few done it and burned them self properly :).

I constantly keep my eye on char/trans roller and am 90% shure it's him but what about dveloper bias? Mybe hes frying drum. DV assy need to last 300k to 500k according to SM and i see DV started to loze some of his ellement (at the ends and in the middle its not the same "colour" to put in simple). Image densitiy in adjustmens is

I see on drum that burning line starts from the end of t. roller ...

Anyway third drum destroyed and wont risk fourth till i dont fix this!

[kalindd]

Yes , I agree that it looks like fried from a high voltage leak. So how can this happen?
I think that a way for this to happen is, old developer old drum (both new in your case i think) or changed distance between the charge or transfer and Separation or mag roller. May be DS collars are "eaten" more quick than expected. Those are the same from bizhub 162 and old di 152 not much a high run machines . Check those collars are they spinning or are they stuck ,from time to time, are they all around circle.
May be yor distance between the doctor blade and mag roll was changed somehow, so you have a bigger developer brush.
Were the couners cleared after changing the drum and developer. Whats the "grid voltage setting" because as far as I know depending on the pc counter the grid voltage will increase, so and the bias will increase. Hope this helps. Cheers.:cool:

[DadO]

I will work on this image till Dev assy arrives then i will replace ( huh huh...) DV and drum. I cleaned Transfer roller....Image densitiy in tech.rep.mod is set to -3.According to sm put on - to get lighter image .

Doues anybody know how to lower the charge/transfer roller voltage, since there is no instructions in SM....? If i get to lover it i will place new dv and drum if not i will still replace...well i dont have much options in here, dont i?:confused:

[kalindd]

As far as I remember there is , "grid voltage" or " Vg adjust" in tech rep or printer or whatever:) Good luck

[facatoros]

evet 350 dv 350 startel kullanıyor ama di 250f modelin seti takacaksın ama atdc sensörün arkasındakı sigortayı yeşil olan parcayı kes.daha sonra seti yerine tak ve F8 yap sorun yok biz böyle kullanıyoruz hatta TN 311 toner kullanıyoruz.:D

[pepper38_cnd]

This is a known issue it happens after a dev change KonicaMinolta says it is because dev got on the wrong side of the Mylars at the ends of the mag roller wearing thru the mylar then the drum it self. In Canada the drums now come with an adhesive mylar to cover the mag roll ends when adding developer to the dev unit. This is KonicaMinolta's solution. Of course you do have to start with a new dev and drum unit. You can just be very carefull when handling dev assy and adding dev, and you will accomplish the same thing.

[redime]

konica Minolta bizhub 350 drum chip resetter

Blueera-printer Drum Toner chip Resetter ??????? -??????w?? (http://www.w109.com)

Youve got to be kidding me right?

Copytech needs to delete this post.... you dont need to buy a chip resetter for the 200/250/350 model - you need to set the Dip Switches to simply not notify the end user that the end of life has been reached. You will find this information in your service manual!

[tonerspot]

the problem is a distance between transfer roller and drum, you have a metal plate which cover the transfer roller,tray to fix it little bit away from the drum.

[DadO]

I instaled new transfer roll 2 weeks ago and as far i see everything is ok. Drum is not burned at least not in this period but i will keep watching.Didn't want to post anything till i try new TS roll. Machine has done 4k copies since

Toner spot where have u been 1 month ago :) u could stop me in fraying 2x drums :) Its obviously corona problem and the metal plate but i will keep u posted guys!


Thx for the assistance! I did need it

THX AGAIN

[copiertechjack]

you are so right redime ,thanks

[StormyKnight]

So whats is the fix for this problem?

Developer unit?
Developer?
Drum?
Transfer?

We have a machine at the moment showing the signs, how do you suggest we address the problem from here?

Thanks

[DadO]

Problem was Transfer roller. This last drum survived all 100k copies after i put new trans. roller. Now i replaced the drum but this time i affixed plate that is covering transf. roller avay from roller it self and i removed plastic supports that rise corona level position. Will check machine today.

[StormyKnight]

So just so I understand what is happening, the transfer is effecting the drum which then effects the developer?

Thanks