Kamoinc 3Pack Replacement 245xl 246xl Ink Cartridges for Canon PG-245XL/CL-246XL(2Black & 1Tri-color)Page Yield: 450 Pages per black ink cartridge and 380 pages per color ink cartridge (5% coverage) Ink Level Display: All Kamoinc 245XL 246xl ink cartridges are equipped with intelligent chips which can show real ink levels.Only for printers sold for United States , please make sure your printer model before order.Printer CompatibilityCanon Printer :PIXMA MX490 MX492 PIXMA TR4520,TR4522,PIXMA IP2820 PIXMA TS202 TS302 TS3120 TS3122 TS3322 TS3320 PIXMA MG2420 MG2520 MG2522 MG2525 MG2555 MG2920 MG2922 MG2924 MG3020 MG3022 MG3029 Installation Steps:Step 1: Remove the black cap before installing;Step 2: Tear off the plastic tape of the print-head;Step 3: Put the cartridge into printer in the correct slot.Note: Do not touch the chip or print-head .Sometimes an error message REPLACE CARTRIDGES Please use a cloth or an eraser to wipe the copper contacts of inkjet chip and printer contacts ,then reinstall them one more time to make sure good touch . OccasionallyComputer shows LOW INK ,please just neglect it and go on printing .