Viridel Ink has more than 14 years experience in Remanufacturing bricks compatible with the 85## ColorQube series, and manufactures only for this printer series. The ink is 100% authentic & factory original Xerox ColorQube ink. There are no 3rd party, waste-tray or Phaser inks in this product Please refer to the third picture on this listing To print the Supplies sheet, use the front LED panel, and select: Information -> Information Pages -> Supplies Usage Page. If you have numbers 936-940, you are coded for European ink. 941-945 is Asia/Pacific, and 946-949 is Metered. My inks will NOT work on units coded for NON-North American regions. If you have A-D coded cubes and/or have ONLY ever used the Starter Pack, you should have no issues with these, as the printer will code automatically based on the first retail ink you put in. NOTE: Due to natural compression while cooling in the molding process, these bricks average 41-42 grams, while a retail brick is 45 grams.