C224e/C284e/C364e/C454e/C545e cyan dev unit problems

[yianni]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

One thing I have noticed on the c454/554 machines with the toner filter is that the filter is almost always blue when ready to be changed.

I'm watching this topic from the first, and now I read again all posts.
I don't think all those machines failed because any hardware of firmware problem. It should be something else. In the first, I thought the IU. I thought may, they are counterfeit. It confused me the pile they developed. But it is very difficult to make counterfeit IU. Even though it's worth because they are expensive.
Finally I think that the problem is the toner. The following convinced me:

why we are not trying different toner, I think it is manufacturing defect which KM will never accept.
Please try another toner
say C8000 tomer is good for C224 / C220 series.
Although it does does not contained developer it can be used for isolating problem.
we are using C8000 toner regularly without any problem, when dev level goes down(for 224 series, C220 as it does not contain dev for CMY ) after 100/150 K we add up with C8000 developer without any problem.

Check the toner bottles, the toner boxes, even the toner powder for any mark to be counterfeit. (Just a tip: magenta toner differs much in color between different makes. Also, the smell of the toner some times is distinguishable).
I don't think Konica could produce a bad toner.
In my opinion, I would try the C6500 or C6501 toner for the cyan. And I would add 60g of C6501 developer in each bottle.

The fact that some machines suffer while others not, means at least two "batch" of toners. On the other hand I don't expect Konica to make a bad toner!
Because I live in Greece I'm familiar of counterfeits. Greece is a smaller market, and the average income is lower so there are more inexpensive/cheap products. And also a big company like e.g. Konica, Okidata, HP, etc doesn't worth to protect because it's a small market. You can't imagine how many counterfeits I have seen! I suspect them when they work bad, not because of the package.

Aftermarket toner / incorrect model is not an option in my situation.

Give it a try, only in one machine for the cyan only.

[yianni]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

I have seen the fact a different toner to "consume" the developer in a Xerox DC250 photocopier. C/M/Y toners work good, but the black "consumes" the developer (like in your case).

[DelawareJim]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

OK, I work on mostly older models. So here is what I have seen on the c550 model. If the toner cannot reach the developer unit, the developer gets pulled out of the developer unit ending up in the waste box. This will give that stripy looking copy and NO CODE. As an example, as I was installing the cyan developer unit into the copier, I broke the little shutter door where the toner enters the developer unit. I didn't realize and left the call. 2 days later....poor copies. I had to replace the cyan developer unit because it's developer had been pulled out of the unit. I know it ended up in the waste box because I shoved my magnetic pick up tool into the box and pulled out developer. As a second example we had a yellow image unit give that stripy looking copy only to realize that there was a chunk of toner in the toner shoot (the area between the toner cartridge and the developer unit). This chunk of toner was blocking any toner from dropping down into the developer unit. I took a cable tie and my vacuum and probed and vacuumed it clean. Replaced the developer unit and it has been fine ever since. I would take the toner cartridge out of the copier and dump all of its contents out onto a newspaper and look for chunks of toner. This time of year July-August is hot as hell and I can only imagine how hot it gets in the back of a UPS truck. 125 degrees? Certainly hot enough to begin to melt and clump up some toner. My gut feeling is that you could be having a starving toner issue. Sure hope this helps.

[nicabocca]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

I am going back to the C280 machine today, my first point of call is going to be the toner supply. See how it works out for my I suppose.

[nicabocca]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Well, hoppers all cleaned out, Cyan dev unit seemed to have less toner sitting in the end than the others. But only made a small difference. Replaced the HV PWB board. Problem solved. No issues so far.

[tradewynnes2]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Got some information from KMBS on this issue. There is a FOC part, bushing kit, they suggest to replace. We just ordered these parts today. If it works, I will let everyone know.

[habik]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Cheers for that tradewynnes2


Sent from my iDon't believe in marketing device using Tapatalk

[DelawareJim]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

We had a c224e dumping a small amount of cyan developer. It was enough developer dumping to get down onto the cyan optics strip and give us really crappy color copies. So, located on the outside of the developer unit just below the mag-roller is a thin mylar strip. That strip was bending inward scooping the developer out. We just ripped the mylar completely off of the developer unit. Seems to be working fine now.

[EarthKmTech]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

We had a c224e dumping a small amount of cyan developer. It was enough developer dumping to get down onto the cyan optics strip and give us really crappy color copies. So, located on the outside of the developer unit just below the mag-roller is a thin mylar strip. That strip was bending inward scooping the developer out. We just ripped the mylar completely off of the developer unit. Seems to be working fine now.

I've had that mylar do the same on cyan imaging units in the C452 series too, and every series all the way back to the c350 - probably happened on CF2001/2 machines too but they were popular before my time.

I believe thats a transport or handling issue and the initial mountain of dev at one end of the roller will start this off.

It also happens on poorly handled C451 Black imaging units too.

[hotfuser]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Got some information from KMBS on this issue. There is a FOC part, bushing kit, they suggest to replace. We just ordered these parts today. If it works, I will let everyone know.

Thanks for this Trade but i have rectified the copiers that have the codes with the above mods the other issue is that the Cyan dev is drained out of the units with no codes and the levels are all correct. This is the problem that is confusing me more.

[tradewynnes2]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

The bushing repairs held with no issue for about a week, now we are having very light prints. The KMBS rep is going out to look at it with me today. Will update if any solution is found.

[Copier Addict]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Thanks for this Trade but i have rectified the copiers that have the codes with the above mods the other issue is that the Cyan dev is drained out of the units with no codes and the levels are all correct. This is the problem that is confusing me more.

The toners all contain developer, so, the dev that is leaking is being replaced by the dev in the toner bottle.

[tradewynnes2]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Ok, so, I don't know if this will pertain to everyone elses machines, but what I finally found on ours is the developing units, when they were replaced, were jammed in and actually blocking the shutters at the bottom of the toner hopper, obviously causing no toner to get through. One day it was just the black having the issue, then after a couple of days the cyan came up. Once that was found, the other colors were jammed and had to be fixed also. It has been about a week with no more calls. Again, not sure if this is the problem with anyone elses machines, but this seemed to solve our problem.

[hjvolschenk]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Hi there i am from South Africa and I've got almost a 100 c284-c554e in the field...also experiencing the same problem.Developer wasted and ending up in the waste toner.But destroying at times transferbelt and drums.Also swapped hv boards and tried different machine settings ,firmware and made sure toner supply working properly but no luck.
I also think this could be a bias related problem...funny... at first all the other people thought i was crazy when i told them about my predicament but soon started experiencing the same problems with no solutions as yet.....And worst of all we dont struggle with just the cyan but all colours...
Sitting with 3 machines that made less than 50000 copies in total and had to replace transferbeltunit,all drums and dev units and another thing that i picked up most of the trouble makers is the e range...
But i also think the culprit could be that front relay board as "Earthkmtech" mentioned and changed-Qouting:"What i did on last call;

New mfp & total initialize & latest fw.
New front relay board
Vacced cyan hopper and new toner bottle (last one fitted for all failed units)
Cyan density set to -1 for copy and print
Stabilization mode set to colour priority."

FRBoard.jpg going to order one tommorow and test ...this problem is frying my brain

This is what my parts look like when the reaper gets in my machines ...actually something to cry about loosing thousands of potential copy clicks!!!
20150813_101548.jpg20150813_101602.jpg20150813_101621.jpg20150813_103253.jpg

If someone gets a solution before time please inform us ....

PS- The amount of developer lost at one time will never be replenished fast enough by the toner adding system....

[allan]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

If you are from one of the branches take it down to the training centre and ask if they can have a look at it.
Did you get any rust and corrosion in the machine. The C360 kicks out its developer if those springs are rusty.

What branch are you from?