HP 645A Black Original LaserJet Toner Cartridge

Get the best results from your HP printing system. HP Smart technology and chemically-grown toner formulas in HP 645A LaserJet Toner Cartridges work with your printer to deliver accurate, consistent color and reliable, cost-effective performance.

Outstanding color
Consistently accurate color and precise images with HP chemically-grown toner Optimal print quality with new image mode feature

Reliable, cost-effective
Cost-effective operation with all-in-one HP toner cartridges HP Smart technology  tunes particle charge for reliable results Rated A+ for service and reliability, PC Magazine August 2003

Easy to use
Easy to use automatic alerts, on-line ordering with HP Smart printing technology. When a color cartridge runs out, continue printing with the black cartridge. Easy to use and install with HP Smart printing technology