Put up your 2 $80 cartridges on kijiji. Ask how to install the new printer here ONCE. When it runs out of ink, donate it to someplace that would appreciate a new printer. Instead of paying ~$40 for another ink cartridge (each, for black and colour) buy the SAME printer again for $30. You wont have to ask how to install it because you already did. Better still, if you are only out of black ink, keep the colour cartridge and put it in the new printer (don't open the new colour cartridge). Sooner or later you should end up with a few new colour cartridges and can then use that savings to buy a ~$40 black cartridge instead of a new printer. The new black cartridge should last about as long as the 3 or so colour cartridges. When you run out of one or the other again, donate the printer and start over again.
This procedure came from a Staples manager when I was shopping for ink cartridges.