Xerox 108R00672 solid ink sticks black for Phaser 8500/8550. Page yield 6,000. Get up to 6,000 pages from your Phaser 8500 or 8550 printer when you install this pack of six Black Solid Ink Sticks from Xerox. Tried-and-tested Xerox technology uses solid ink for clean and efficient printing, with no environmentally-unfriendly cartridges to dispose of. They're specially shaped to ensure fluid loading and fast speeds. These solid ink sticks are a genuine Xerox product, ensuring unbeatable quality and reliability.