Windows 07 , if my memory is correct
After a cartridge change
The old cartridge is empty and has been binned. The printer would not work at all without a new cartridge.
We changed two cartridges (magenta and cyan) but not the black one, with which the problem arises.
We have the new black cartridge to hand but need to follow the instructions how to change it. We thus need to get these new instructions from the relevant screen. As soon as this has been done we will try to come back to you.