Right ive got a HP Deskjet F380 which takes cartridges: 21 & 22.
Rather then buying replacements etc i bought a refil pack from Cartridge World:
Filled and been left for at least 8 hours, now the colour im not too worries about but seems to print okish, however the black is only printing every other line of size 10 font and its not very clear either.
Ive tried printing test pages...i set it to print 75 the other day and that still hasnt worked.
So anybody any ideas?