123inkjets offer cheap discounts on printer inks and papers for most leading printers such as Canon, Epson, HP, Brother and Xerox at very cheap prices, also free delivery on orders over $90, make sure you check out the site as they often have voucher codes and hot deals:

Printer Ink Cartridges | Ink Toner Cartridges - 123Inkjets

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Hot deals - 123Inkjets

Canon PGI35BK Black Ink Cartridge - 20% Off - Limited Stock

Canon Genuine Ink Cartridge Suitable for Canon PIXMA iP100
Was $12.45
Now $9.96

HP 51645A No 45 Black Printer Ink Cartridge

HP Genuine Ink Cartridge, suitable for Colour Copier 170, 190, 290, Deskjet 710c, 720c, 820cxi, 830c, 850c, 850k, 870cxi, 880c, 890c, 895cxi, 930c, 950c, 960c, 970cxi, 990cxi, 1000cxi, 1120c, 1125, 1180c, 1220, 1280, 1600c, 6122, 9300, OfficeJet G55, G85, G95, K60, K80, R45, R65, T45, T65, OfficeJet Pro 1150c, 1170c, 1175c, Photosmart P1215, P1218

Was $34.50
Now $31.05