The XEROX COLORQUBE 8700 2PK SD BLACK INK STICKS, part number XER108R00993, are designed for use with the XEROX COLORQUBE 8700 printer. It is intended for businesses and IT departments that utilize the specified XEROX printer model and require consistent black ink availability. The ink sticks are a consumable component necessary for the printer's functionality, ensuring continued document output without interruption due to depleted ink. It helps prevent downtime by ensuring that replacement ink is readily available when needed.