big problem of Konica Minolta C6500

shawn Xia · Dec 13, 2010

the test pattern is 53,density setting is 80.the copy is showed as below

see the outside,it is different with other area.it is hard to express，the outside of the copy is like swept by something.
I change the drum,developer,developing unit,charging unit,transfer unit and clean the black laser unit,no change!

any suggestion?

rickj · Feb 14, 2011

Uneven density

You may want to perform the charge corona height adjustment to even the density from front to back on test pattern 53.

devoti.künne · Mar 18, 2011

It's within the machine's specification…

We had the same problems with a c5500. As this is nearly exactly the same machine I will try to answer you: we had a lot of discussions with KM Technicians and marketing people. The last thing we heard was that this is not a problem as it lies within the machine's specifications. At least this is what you will always hear when they aren't able to solve problems.

After a year or two they brought some new Drum Units (DU-102c). Important thing is the "c". They told us the new revisions would solve some problems regarding Blade Flipping. With the new Drum Units the problem was not solved entirely but it got better.

What improved the quality of large grey areas was profiling the machine with ColorCare. I can't tell you how much you would have to pay for that. But this really improved the overall quality of the machine.

Maybe this would help

shawn Xia · Mar 19, 2011

thanks a lot. we have solved the problem by replacing the laser writing unit of K.

devoti.künne said:
We had the same problems with a c5500. As this is nearly exactly the same machine I will try to answer you: we had a lot of discussions with KM Technicians and marketing people. The last thing we heard was that this is not a problem as it lies within the machine's specifications. At least this is what you will always hear when they aren't able to solve problems.

After a year or two they brought some new Drum Units (DU-102c). Important thing is the "c". They told us the new revisions would solve some problems regarding Blade Flipping. With the new Drum Units the problem was not solved entirely but it got better.

What improved the quality of large grey areas was profiling the machine with ColorCare. I can't tell you how much you would have to pay for that. But this really improved the overall quality of the machine.

Maybe this would help

JPL Milosh · Jan 8, 2012

Can some on help me with folding?, Ive tried everything and i still cant fold with the Konica C6500. I want to be able to fold while its printing is that possible/ i am using A4 down to DL

devoti.künne · Jan 9, 2012

JPL Milosh said:
Can some on help me with folding?, Ive tried everything and i still cant fold with the Konica C6500. I want to be able to fold while its printing is that possible/ i am using A4 down to DL

First you have to put the A4 paper as A4S into the machine. Otherwise you won't be able to let the machine fold the paper.
If you want the paper to be folded to DL you need to set the paper weight to 80 g/sqm. You can obly fold up to three pages at a time to DL. At least these are the specs if you use the finisher FS-607. For other finishers I can't tell.

big problem of Konica Minolta C6500

shawn Xia

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