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Error Code B800000C on start up - Blue Screen

HP Recommended
Designjet T520
Microsoft Windows 10 (64-bit)

I keep getting this blue screen on start up.  It was a different B series code before, but I attempted to hold down the on-off button for 15 seconds to do a hard re-set as suggested in an earlier forum response, and I am still getting this blue screen error.  However the new error code is B800000C.


I am trying to find out if I need to replace the main logic board or if there is another fix.


Ed C.


Level 7
634 609 35 85
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HP Recommended



Isolate the printer, remove ink cartridge, printhead and paper

Try another power cable and power outlet


If the issue persist use the CQ890-67105 USB New Module with F/W SV


Good news, that's a lot cheaper than the Main PCA



Most times the issue is a bad firmware usb thumb drive mounted on the main board. They are available from hp parts for 25.00 which is the way I would first go since it is a lot cheaper then the main board which comes with the same drive.  The part number is CQ890-67105.


Just go to the link below and put the part number in to order.


You can find it here






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