PLEASE HELP WITH KONICA C284E! Expert advice needed

[Elmo]

Have you had the machine from new or was it a used machine also what are the counters
are the techs you have had look at the machine trained on Konica and specifically your model
it is very likely you have turned a simple fault into a major one by attempting to fix the machine yourself
and have wasted a lot of money at the same time
google can be a dangerous thing information in the wrong hands can cause more damage than good

i would advise calling a konica dealer in your area and be honest with them tell them exactly what you have done
and hope they can fix your mistakes

[fixthecopier]

You mentioned having a machine or machines for 20 years without a contract and want to know why you should get one now. This is an example of an issue currently going on in my shop.

Customer buys 2 brand new Bizhub 554e machines. Build both, one has error code c-f902. A quick look up of that code says MFBS board or maybe firmware. Machine will not take firmware. We delivered the good one and have been working on the bad one for 10 days with factory input every day. Have changed everything related to it. Still dead.

This is how complicated new stuff can be. If you had bought this machine and took delivery of it and it coded a few months from now, you would be on your own. That is why you pay for service contracts.


Let me be clear, with a contract the machine would be serviced by qualified personnel but that does not always mean a quick fix. But with a contract, the money spent is ours and a loaner machine would be provided.

[TheBlueOrleans]

I'm just going to make a wild assumption and figure that SOMEONE has run stabilization, gradation, replaced (not just cleaned) the Y Dev unit, and run toner hopper filling and manual toner add for the yellow.
another question: is this issue on copies only or all pages? If copies, has anyone cleaned the glass?

replacing the Intermediate Transfer Kit first thing definitely sounds like killing a fly with a shotgun.
i'll go with everybody else and highly recommend getting a service contract.

[konicauser]

Thanks Guys for the replies.

Now changed PWB Board. Still yellow is not registering.
Most components now changed. Please can anyone suggest something else. What everyone seems to not understand is yes it would be better with a service contract but even these guys can't fix it.

The engineer now says try the printhead itself.
What I wish to ask when the engineer took the printhead out it was lose on one end but the screw was tight. Is this like this normally or does it need to be tightly secure.

[Synthohol]

Hey just to toss my .02c into the mix, konica offers a 3 year bumper to bumper warranty.
If an AUTHORIZED konica dealer cannot fix it he has to contact the DSM for that area. If he comes and cannot fix it within 2 or 3 tries konica will replace the whole machine.
Id like to think they do the same across the great pond as they do here in the US.
Look at the mfg date on the serial label behind the machine. If its less than 3 years you are covered.
Good luck.

[vsluggo]

The bitterness of poor quality remains long after the sweetness of low price is forgotten- Benjamin Franklin

HI ALL!
Joined this forum as a newbie and looking for all your expertise help and advise.
We are having some problems with our KONICA C284E


What started out as a yellow streak down the middle of the page we replaced the Immediate Transfer Belt (£350) thinking this will fix it.
The line was still appearing and we called out an engineer (£150 call out). He advised to replace the drum unit on the yellow unit as it had a scratch on it. Instead of getting the full thing I purchased a brand new black drum unit which is cheaper (£100) and used the old black roller and cleaned the yellow drum with the new roller in. Hooray the line had dissapeared and printing again and I had a new drum unit for the black. It was printing perfectly.
All of sudden one day the toner box was full without sending an error and I could see that the machine was full of yellow! The DEV Unit was leaking toner and the drum. It was a mess. Anyway I decided to buy a new Drum Unit for the Yellow (£250). I know now I shouldn't have I cleaned the DEV UNIT! The top of it was like hair follicles. I cleaned it and put it in. The image printed but yellow was away from the image area. The yellow was away from the print. Wasn't registering. I purchased a new Yellow Dev Unit. No luck still. Yellow is mis-registering. We have had engineers out and they cannot fix it.
Please could someone help!! We have purchased the Yellow Dev Unit, Yellow Drum, Black Drum, New Immediate Transfer Belt. Even have purchased another and the yellow is still mis-registering.


Really have a backlog of jobs and printer is not printing!
Big headache and have spent in £850 in parts and over £600 on engineers.

PLEASE HELP!!!

[konicauser]

I don't know why people enjoying putting others down.
There is nothing cheap here or something that we doing for cheap!!!
Anyway we have had the PWB Board changed also but no luck!
The thing what seems to throw me of is that you guys all claim to be tech's but even none of you know what this could be even though we have told you what has been changed. So if I want to say anything is that this site and forum isn't helping and don't think much about your tech support. Only a few have been helpful but most are just here to dig people. Makes them feel a bit better I think and showing themselves as being a lot more intelligent than these people with problems. Sad really
The ones who have helped thanks a lot. If there is any idea of what should be the last thing to change. Printhead?

[JSC]

Hey just to toss my .02c into the mix, konica offers a 3 year bumper to bumper warranty.
If an AUTHORIZED konica dealer cannot fix it he has to contact the DSM for that area. If he comes and cannot fix it within 2 or 3 tries konica will replace the whole machine.
Id like to think they do the same across the great pond as they do here in the US.
Look at the mfg date on the serial label behind the machine. If its less than 3 years you are covered.
Good luck.

I work for a 5star Konica Minolta dealer and we only get a 9 month warranty here in the UK..

I don't know why people enjoying putting others down.
There is nothing cheap here or something that we doing for cheap!!!
Anyway we have had the PWB Board changed also but no luck!
The thing what seems to throw me of is that you guys all claim to be tech's but even none of you know what this could be even though we have told you what has been changed. So if I want to say anything is that this site and forum isn't helping and don't think much about your tech support. Only a few have been helpful but most are just here to dig people. Makes them feel a bit better I think and showing themselves as being a lot more intelligent than these people with problems. Sad really
The ones who have helped thanks a lot. If there is any idea of what should be the last thing to change. Printhead?

Can you scan and upload an image of the issues you are getting? We might be able to point you in the right direction then.

[Synthohol]

I work for a 5star Konica Minolta dealer and we only get a 9 month warranty here in the UK..

OMFG! I'm so sorry, i didnt even know the MFG warranty was different across the pond. that's so not fair!

[Mr Spock]

First not knowing your skill set I am recommending the following be done by trained/certified technician.

Remove the drum and developer units from the machine.
Clean the area inside and the laser slit glass
check the connections on the rear wall for cracks and deformities.
Check the removed units for leaking seals, broken gears.....etc
If either has issues then replace as a set (costly but might be worth it, check date code of new unit and make sure it is less than 3 months old.)
Remove the transfer belt unit and check all connections and the primary transfer roller inside unit.
If all this is good and it still does it then I would replace the following in this order
Hv power supply (run bias and ground to dev and drum units)
engine control pwb
low voltage power supply.
Then all harness between the contacts and the pwb's.

one or more of the above is the issue, it is a matter of finding which one.