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The LaserJet 42x Black Toner Cartridge from HP/Hewlett-Packard keeps your tones consistent when printing large quantities. Smart printing technology provides dependable, uniform results during the entire life of the cartridge. SureSupply technology alerts you when the toner is running low. Keep your prints sharp and consistent, even at high volumes.
Note: This cartridge is not compatible with the LaserJet 4240
Average cartridge yields 20,000 standard pages (declared yield value in accordance with ISO/IEC 19752
Smart printing technology maximizes usage of toner
HP SureSupply monitors and sends alerts about toner supply