Question about Konica Minolta bizhub 350 All-In-One Laser Printer

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Error code C-3851 - Konica Minolta bizhub 350 All-In-One Laser Printer

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On the right side of the machine just below the scanner section (The part with the big glass) is a cover next to where you connect the Ethernet cable. Remove the cover, with the machine on use a small screw driver and gently depress the small black switch. The machine is going to go thru some screens when you see the screen with the copiers on it to the left on the screen in the middle you will see a "." when that is displayed press 3. The code will come back but now press the Utility/Counter button, you should see a button that says Maintenance Mode press that, see Trouble Reset press that and the machine will again will go thru warm up procedure, you will see the "." DO Nothing! The machine should go to "Ready to Copy" if the code comes back. Have a technician look at it DO NOT CONTINUE TO RESET the code is for the Hot Part called the FUSER. It can catch on fire! And that will ruin a perfectly good day!!!!

Posted on Jan 24, 2016


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Hi geosegr,

Can you confirm the code is C-3821.
Because it's not one that I recognise.
There are only two C-38xx codes, they are C-3851 and C-3852.
Both of these codes relate to the fusing section.
If it were me, I'd have a look in the fuser area to make sure there is no paper stuck. Then you'll need to reset the code. To do this,
Turn OFF the Main Power Switch.
Turn Main Power Switch ON while pressing the Utility/Counter key.
Touch [Trouble Reset].
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After turning off the Main Power Switch, turn it on again more than 10 seconds after and check if the machine starts correctly.
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