Error: 0x07a74dd61959:lib-barracu I cannot get my printer to work. I have tried changing the cartridge and this has resulted in all the lights flashing and this message being displayed: Error: 0x07a74dd61959:lib-barracu . I have tried turning the printer off/disconnecting it for 5 minutes, but the same result!

Remove the cartridges and do a full reset without them in by removing the wall socket and re-plugging.

More information has been answered in another thread.
Error oxc1ab0003730 Lib micci2 tango

Error Message: Check Ink U051

This message appears when the cartridge not installed, not properly installed, or non supported cartridge is installed.
As a result the printer cannot recognized the installed cartridge.

Remedial action:

* Reinstall the cartridge properly
* Ensure that you installed supported cartridge only
* Replace the cartridge

https://h30434.www3.hp.com/t5/Inkjet-Printing/Error-0x07d54dd62005-1ib-barracu/td-p/2878329

just clean the printhead contacts 
if you see no result
you must change the cartridge 

Dell 1320c printer error 093-973 "Black cartridge is either missing or not fully inserted into the printer." I've replaced cartridge with four new (known good) cartridges. I've tryed the reset button. It does not recognize the black cartridge. I own two 1320c printers and all four new black cartridges work in the other printer.

Sounds like a sensor got damaged. I'd suggest a quick strip down and clean the whole printer out and giving it a good service.

ITS NOT THE BLACK CARTRIDGE!!! Try changing the colour cartridge and see what happens. When a 9600 checks ink levels it does the black ink first, then the colour, if the colour is low it goes back and checks the black again but will constantly give an error message for the black cartridge. Sounds bizarre but try just the black cartridge in with no colour. print a test page in black only, if that does not print then it is a fault. Also make sure the driver is updated!!!

Right click on the printer icon in control panel / advanced

The error is "toner cartridge error" you could try cleaning the contacts inside the printer (with the power off, of course). If that doesn't work you will need to try another cartridge.

Please send to me your email address and i well send to you the error status or print the even log to see the even code number if possible