HP 645A Black Original LaserJet Toner Cartridge for LaserJet 5500, 5550 - C9730A

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.

Take pride in high-quality prints with Original HP Toner.

The choice you can trust to help avoid reprints and wasted supplies. Choose Original HP Supplies, designed for reliability and consistency.

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.