Scooby owner one day

My printer started to print stuff all in a cyan (blue green) colour so i printed a test page with the coloured bars on and the magenta bar was missing and it said there was 75% black ink left and 38% colour , so i replaced both cartridges and now the yellow and cyan bar are missing with only the magenta and black bars there but it says the cartridges are 100% black and 98% colour and everything is coming out magenta! Is there anyway of fixing it or is the printer knackered? Its a hewlett packard P1000. The new cartridges were at least 1 year old don`t know if that would make any difference?

HankScorpio

Try a head clean, probably just clogged nozzles.