Compatible toner cartridge for Xerox printers. For the best performance and reliability from your Phaser 7100 laser printer, install a genuine yellow toner cartridge. Packed with enough toner to print up to 4,500 pages, this cartridge contains a unique toner formulation for smooth operation and hassle-free results every time. Xerox engineering gives you even shades, crisp detail and the best possible output from your printer.