View Full Version : Error Code bizhub c6500 fault code 4720

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07-29-2015, 08:22 PM
Hi everyone,i am having a trouble code 4720 to a c6500 konica minolta. I'll try to replace the cyan writing unit.
Do you experiance to this or any familiar fault???????
Thanks for your time!!!!!!

07-30-2015, 12:42 AM
It is more than likely to be the Cyan write unit. Just to be sure I would swap the Cyan and Magenta write units around and see if the fault code changes. If it does then the write unit is faulty. If it doesn't then I would suspect the image processing board or the write unit wiring loom.
hope this helps.

10-22-2017, 11:30 PM
Repair laser drive board.
Replace the laser diode using a laser unit of c 250 c 252

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