These printers use the S051009 cartridge:

ACER Acerlaser 506 G

ACER Acerlaser II G

ACER Acerlaser III G

ACER Acerlaser III PLU

Bezier BP 1060

Bezier BP 4060

Develop L 3101

Develop L 3103

Epson 7100 MEGA 2

Epson 7100 MEGA 2 Plus

Epson ActionLaser 7000

Epson ActionLaser 7500

Epson ActionLaser 8000

Epson EPL 7000

Epson EPL 7100

Epson EPL 7100 MEGA 2

Epson EPL 7100 MEGA 2 Plus

Epson EPL 7300

Epson EPL 7500

Epson EPL 8000

Epson EPL 8100

Epson EPL 8500

Epson LP 3000

Epson LP 3000 PS

Epson LP 3000 PSF2

Epson LP 3000 PSF5

Fujitsu Faxjet

Fujitsu Jetfax Ii

Jetfax 9450

Jetfax Concorde

Jetfax Concorde 2 L

Jetfax Concorde 9100

Jetfax Concorde 9102

Jetfax Concorde 9140

Jetfax Concorde 9142

Jetfax Concorde 9200

Jetfax II

Jetfax Jetfax II

Konica Minoltafax 1000

Konica SP 101

Konica SP 101-6PPM

Lanier KLP

Minolta Minoltafax 1000

NEC 90

NEC 95

Omnifax L 007

Teleautograph OmniFax L-007