Does anybody have any idea about this kind of problem? Thank you in advance and sorry for the long story.Konica Minolta Mobile Print is a smart, easy to use mobile app that wirelessly connects your mobile device to your Konica Minolta MFP. I think there is 'command' not sent to the motor (for example Start/stop command or anything else). I also have checked the 24V/3.3V on the Motor connector they are ok (I can check the currents arrived to the connector). trying to check everything again (PRCB/ICP19/swapping motor etc.) no solution.

And powering it up again, the problem reappears again. So I thinked the problem was solved, but shutting down the machine (to close all frame dismounted previously). I have changed the motor anyway and didn't put it inside the 'hole' the motor is turning correctly so I put the motor inside the machine the machine worked for a while (I could print the famous demo page correctly and the C-225B code disappeared). Updating the firmware still the same problem. Changing the PRCB, the problem still appearing. checking the connector on the PRCB, it is firmly connected, checking the ICP 19 on PRCB (as described in the troubleshooting guide) the ICP is working correctly. swapping the connector to the transfert belt motor connector (just to check if the motor is really dead) surprise the motor is working. So I went to the customer, checking the K PC drum motor effectively the motor was not turning. And every morning it take longer to get ride of the code (Day1: 30 min/ day2: 45 min/da圓:1 hour and so on) today after trying to open and close the door no solution after 4 hours.

The problem disappear after 30 min trying to close and open the door. few days ago I got C-225B error code in the morning (starting up the machine), I told the customer to open and close the lower front door (as described in the service manual). Hi all, i'm facing a big and strange problem.

C225b bizhub c452