These printers use the KX-FA55 cartridge:

Panasonic FP 81 EX

Panasonic KX-F 185

Panasonic KX FC-195

Panasonic KX FM-89

Panasonic KX FM-90

Panasonic KX FP-80

Panasonic KX FP-81

Panasonic KX FP-82

Panasonic KX FP-85

Panasonic KX FP-86

Panasonic KX FP-88

Panasonic KX FP-94

Panasonic KX FP-95

Panasonic KX FP-96

Panasonic KX FP-151

Panasonic KX FP-152

Panasonic KX FP-153

Panasonic KX FP-155

Panasonic KX FP-156

Panasonic KX FP-161

Panasonic KX FP-165

Panasonic KX FPC 91

Panasonic KX FPC 95

Panasonic KX FPC 96

Panasonic KX FPC 161

Panasonic KX FPC 165

Panasonic KX FPC 166

Panasonic KX FPG 175

Panasonic KX FPG 176

Panasonic KX FPG 371

Panasonic KX FPG 372

Panasonic Panafax KX FPC 96

Panasonic Panafax KX FPC 151

Panasonic Panafax KX FPC 175