These printers use the 815-7 cartridge:

PitneyBowes-Imagistics 2030

PitneyBowes-Imagistics 2040

PitneyBowes-Imagistics 2050

PitneyBowes-Imagistics 9900

PitneyBowes-Imagistics 9910

PitneyBowes-Imagistics 9920

PitneyBowes-Imagistics 9930

PitneyBowes-Imagistics 9950

PitneyBowes-Imagistics 9990

Imagistics 2030

Imagistics 2050

Imagistics 9900

Imagistics 9910

Imagistics 9920

Imagistics 9930

PitneyBowes 2030

PitneyBowes 2050

PitneyBowes 9900

PitneyBowes 9910

PitneyBowes 9920

PitneyBowes 9930

Savin 2050

Siemens Fax 960 S