What's your i have Bizhub 600,when i make a copy, the Df, and scanner are working normally, after that you see in the screen (Read to accept another jop) and the machines does not copy please te

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Getting Error message the MFC 7860DW LAN cannot be found when scanning

Make sure you have the latest firmware and reseat the exposure lamp and board connectors for starters

DF control board (DFCB) communication abnormality.
- Communication abnormality between the printer control board (PRCB) and DFCB. Causes DF control board (DFCB) Printer control board (PRCB)

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.
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Also, please visit our websites, we're sure you'll find useful things there
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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

Does your exposure lamp come on ? Mite have a problem with the scanner lamp or the Scanner reader that the CCD the black device under the big glass that views the document to be copied. Exposure lamp is what high lights the original document(s)

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

Check the scanner lamp. It is possible the scanner is faulty. Try to replace with a known working lamp. If this doesn't work you might have to check the scanner board or the CCD lense.

When is the last time a full PM was done. with the counter properly cleared and require procedures where done after the developer and drum are replaced, did you clear the counters for the new drum?? Replacing the heater (FUSER/FIXER is not the problem) A good cleaning in and around the Photo drum and developer section with the developer replaced and counters properly check and so get a qualified Konica Minolta Tech out to look at the machine. My recommendation

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

When the last time the machine was cleaned in the drum area along with the associated sensors, when was the last time drum and developer replaced, every 250,000 copies drum developer should be replaced.

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

use a different scan mode,like the one that came with computer

first toner must must and must be genuine, other wise it wont work in any conditions,
2nd toner density sensors and gamma sensor should be cleaned and all auto setting must be run .
third some time toner drops down the others side of the drum due to recycle clutch did't not work properly and all cleaned toner drops down after filled in recycle area,