Package Contents: 1*280XXL PGBK,1*281XXL Black,1*281XXL Cyan,1*281XXL Magenta,1*281XXL Yellow, large ink volum for more printing pages. Victor 280xxl 281xxl inkjet cartridges are designed for better printings at lower cost per page. 1) Easy to insert and perfectly recognized like original PGI 280XXL ink cartridge, work as good as genuine ones. 2) Aamazing printing results and prices, ideal for daily use.Our target is help users to cut down the printing cost. 3) Documents & text & graphic & photos printing with professionalquality black and vivid color. 4) Large ink volum, no need to change the ink cartridge so frequently. 5) Good customer service. 100% Money Back or Replacement. Installation instruction: Attention : Do not touch the cartridge chip, if you touch the chip accidentally, wipe it with an eraser. Step A: Turn off the printer. Step B: take out the old cartridge, shake the new cartridge upside down for 5 seconds. Step C: Remove the orange cap carefully,pull the orange seal. Step D: Install the cartridges into correct slot and turn on the printer. TIPS: 1.For better printing result we advise run print head cleaning process before use. That will make huge difference. 2.After installing the new cartridge, a message ''Not Genuine'' may pop up, please click ''Yes'' and then continue to print. 3.If error message says ''Cartridge cannot be recognized'' or ''Cartridge is damaged'', please try to reinstall it.