FOR HP LLLSI 4SI/MX CANON NX Technical Specifications: General: Manufacturer Description : * NX Toner Cartridge* Description : * NX Black Toner Cartridge* Product Family : * NX Cartridge* Product Line Series Model : * Canon LBP NX, HP LaserJet 4si, HP LaserJet 4si MX, HP LaserJet IIIsi* * Specifications: Form Factor : * Single-Color Cartridge* Imaging Colors : * Black* Percent Coverage : * 5 %* Print Life : * 10250 Pages* * Warranty: * Technical Support: Technical Support Phone Number : * 800-822-2979* *