That's why my HP printer only has a black cartridge. The socket for the color cartridge is empty.
Overall I've started to buy B&W only laser printers and I buy a new printer when the toner runs out.
You can find Samsung entry level laser printers with a toner good for 300-500 pages on Amazon for about 30£ on sale that's cheaper than buying a toner.
1st world problems for sure but this is beyond stupid.
http://www.anandtech.com/show/10677/hp-acquire-samsung-print...