I have Konica c220 a maassage : replace the Drum unit Black. There no broblem in print quality so how it reset

replace the black image unit, drum and developer unit

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Are the lines white (no toner is printing on that area) or black (too much toner is printed on that area)? In the first case, you might have dirt on the developing unit, the best bet is to replace the developer and before cleaning the developing unit. If the second case is you case, you might have a broken drum (scratches on the green drum that you'll see while the right door is open) or the charging unit might be dirty; in these two cases, you should replace the drum unit. The same black lines appears if the fusing roller is scratched, in this case you should replace it. Just drop us an email at [email protected] and we'll assist you further.
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Konica Minolta Error Codes & Solutions - http://www.kmcodes.com
Drum, Transfer Belt and Fusing Unit Firmware Reset - http://www.bizhubreset.com
Drum and Toner Chip Reset - http://www.chipreset.eu
Transfer Belt and Fusing Unit Reset Kit - http://www.resetkit.eu

Are the prints ok? Did you tried to print a test page as follow: Utility -> User Settings -> Print Settings -> Print Reports -> PS Demo Page -> Start. Check this page and if it is looking OK, you isolated the malfunction to scanner area. Try a scan and check the quality, afterwards try to copy from DF and try a glass copy, check the quality.
If you need anything else, just drop us an email at [email protected]
Also, please visit our websites, we're sure you'll find useful things there
---------------------------------------------------------------
Konica Minolta Error Codes & Solutions - http://www.kmcodes.com
Drum, Transfer Belt and Fusing Unit Firmware Reset - http://www.bizhubreset.com
Drum and Toner Chip Reset - http://www.chipreset.eu
Transfer Belt and Fusing Unit Reset Kit - http://www.resetkit.eu

have a tech come out clean the machine run require procedures to determine problem

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

replace the black drum and developer unit

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

replace the cyan image unit

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

CHANGE ALL THE CHIP OF DRUM & TONER.

behind the waste tone box it will be labeled K. there are also firmware and settings to cut this warning off.

did you check the cartridge or a drum or its compatible or generic katun

if only black does that, then it can be black toner, but the best way to find out, print something and when printer starts to take paper open front door, remove waste toner box and take out pc drum and transfer belt and check the printed page from there, if it seems ok, print nex page and open door when page comes out from fusin unit, if quality goes bad before fusing unit, it may lead to 2'nd transfer roller / pc drum and transfer belt quality was ok / if after FU then you have a problem in fusing unit.