Compatible with | AT&T models: 577; C. Itoh models: 3500, 3500-10, 3500-20, 3500-30, 3500-40, 4000, 5000, 5000CX, 5000TX, CI-250GXP, CI-250LXP, CI-3500; CI-3500 Model: 10, 20, 30, 40; CI-4000, CI-5000, CI-5000CX, CI-5000TX; TRI Printer: Model 10, Model 20, Model 30, Model 40; Citizen models: ProDot 810X; Radio Shack models: DMP2200 |