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

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Error code C-12CB

I ordered a Blk Immaging Unit when it comes in will this make the problem go away or is this another problem?

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Re: Error code C-12CB

You ordered black IU ???? do you have bichub 350 or C350 ???? because 350 is B/W printer and you need trum unit and starter at least.
C12CB: Hard disk data transfer error

1 Reinstall the hard disk.
2 Change Hard Disk.
3 Change PWB-MFP.

Posted on Feb 29, 2008

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What corrective action to take for Malfunction Detected code C-12CB?

C12** errors are hard drive related, you will need to replace or disable it. You can try to reformat it. You have to be in service mode and the firmware may need to be upgraded if it never has.

Jul 02, 2015 | Konica Minolta bizhub Printers & Copiers

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Customer service

well the model number would help replace the image unit it is asking for

Jan 02, 2014 | Konica Minolta bizhub Printers & Copiers

1 Answer

Malfunction Detected code C-12CB konica Minolta

Hi bellotasuelt,

I can't find any reference to that code in the Bizhub C250 Service Maunual.

Having said that, all C-11xx codes relate to the finisher/sorter.
Try opening and closing it. Have a general look in the finisher for jammed paper.
Make sure nothing is obstructing the unit from moving.

Sorry I can't be more specific.

Good luck.

Dec 28, 2009 | Konica Minolta bizhub C250 All-In-One...

1 Answer

Error code H4-00


That error is referring to the fuser unit not reaching it's correct temp. within a specified period of time. You can try clearing this error with the procedure I will give you, but if it comes back then a service tech should look at it.

With the machine on and the error displayed press these keys in this order quickly. # * Clr * This will put you in a service mode. At this point key is 14 and press Start. Shut off the copier and try turning it back on and check to see if the error has gone away.


Aug 06, 2009 | Toshiba e-Studio162 Copier

1 Answer


Hi, C-12CB means you have a problem with a transfer of data from the Hard Drive.
You may be able to format it somewhere in the Administrator settings.
If not, a service engineer can Format the HDD in Tech Rep mode.

Jan 23, 2009 | Konica Minolta bizhub 350 All-In-One Laser...

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Error 000001-0004 ON MY IMAGE RUNNER 2620N,000001-0003 on3200n

ok that code has nothing to do with your drums that code is for a error in the fuser unit, you have to reset it in this order ADD FUNC key// then hold down the 2 & 8 keys at the same time / then ADD FUNC key again... screen should change to serv mode.... then in this order.touch copier/func/clear/err. ok turn off copier then back on... if code comes back you have a bad fuser unit swap it out clear the code again then try the new unit

Dec 22, 2008 | Canon Printers & Copiers

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Replace or Disable harddrive.

Mar 22, 2008 | Konica Minolta bizhub 350 All-In-One Laser...

1 Answer

Message on printer

Your printer has counter on it that keeps track of the number pages that have been printed with it. It is warning you that the drum unit is coming close to the end of it's rated life. Order a black drum unit and have it on hand. Some time in the near future the printer will stop operating until you install the new drum which will come with instructions on how to install it. If you order it now, you will avert a "Crisis" later. Ed

May 22, 2007 | OKIDATA B4350N LASERPR 23PPM ETH-W/ PS BLK...

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