These printers use the 56116801 cartridge:
Okidata 410 E OKILaser
Okidata 410 E PS OKILaser
Okidata 810 E OKILaser
Okidata 2350 OKIFax
Okidata 2400 OKIFax
Okidata Okifax 1000
Okidata Okifax 1050
Okidata Okifax 2200
Okidata Okifax 2350
Okidata Okifax 2350 Laser
Okidata Okifax 2400
Okidata Okifax 2400 Laser
Okidata Okifax 2450
Okidata Okifax 2450 Laser
Okidata Okifax 2600
Okidata Okifax 2600 Laser
Okidata Okifax 5050
Okidata Okifax 5200
Okidata Okifax 5200 Plus
Okidata Okifax 5250
Okidata Okifax 5300
Okidata Okifax 5300 Plus
Okidata Okifax 5400
Okidata Okifax 5500
Okidata Okifax 5600
Okidata Okifax 5600 Plus
Okidata Okifax 5650
Okidata Okifax 5680
Okidata Okifax 5680 I-Fax
Okidata Okifax 5680 IFax Digital
Okidata Okilaser 400 E
Okidata Okilaser 410 E
Okidata Okilaser 410 E PS
Okidata Okilaser 600 E
Okidata Okilaser 610 E
Okidata Okilaser 610 E PS
Okidata Okilaser 610 E/S
Okidata Okilaser 810 E
Okidata Okilaser 810 E/PS
Okidata Okilaser 810 EX
Okidata OKIPAGE 6 E
Okidata OKIPAGE 6 EX
Okidata OKIPAGE 5250
Okidata OKIPAGE 5400
Okidata OL 400 E
Okidata OL 400 EX
Okidata OL 410 E
Okidata OL 410 E/PS
Okidata OL 410 EX
Okidata OL 600 E
Okidata OL 600 EX
Okidata OL 610 E
Okidata OL 610 E/PS
Okidata OL 610 EX
Okidata OL 810 E
Okidata OL 810 E/PS
Okidata OL 810 EX
Okidata OP 6 E
Okidata OP 6 EX
ATT Plain Paper Fax 200
ATT Plain Paper Fax 300
ATT Plain Paper Fax 400
ATT PPF 200
ATT PPF 300
ATT PPF 400
Bosch Fax 373
Bosch Fax 374
Bosch Fax 381
Detewe Varix Fax 2100
Detewe Varix Fax 2300
Detewe Varix Fax 2500
Detewe Varix Fax 2550
Detewe Varix Fax 2600
Imagistics Addresswrite J-683
Jetfax Jetfax M-5
Jetfax M 900
Jetfax M 910
Jetfax M 910 E
Jetfax M 920
Jetfax M 920 E
Jetfax M 930
Jetfax M 930 E
Konica 9750
Minolta 9750
Minolta Fax 9660
Minolta Fax 9750
Minolta Fax 9760
Minolta Fax 9765
Minolta Fax 9820
Minolta Fax 9825
Mufax 254
Mufax 358
Nashuatec OF 100
Nashuatec OF 1000
Nashuatec OF 2200
Nashuatec OF 2400
Nashuatec OF 2600
Olympia LP 60
Olympia LP 60 D
Olympia OF 800
Olympia OF 805
Olympia OF 820
Olympia OF 825
Olympia OF 826
Olympia OF 840
Olympia OF 845
Olympia OF 846
Olympia OF 860
Olympia OLYFAX 820
Olympia OLYFAX 840
Olympia OLYFAX 869
Olympia OLYFAX 2500
Olympia OLYFAX 2550
Olympia OLYFAX 2750
Olympia OLYFAX 2775
Olympia OLYFAX 2870
PitneyBowes-Imagistics Addresswrite J-683
PitneyBowes-Imagistics J 683
PitneyBowes-Imagistics Wptl
PitneyBowes-Imagistics WPTL
Tally-Genicom UKP 395