These printers use the 1380999 cartridge:

IBM 5223
IBM 6747
IBM 6783
IBM 6784
IBM 6787
IBM 6788
IBM Easystrike
IBM Personal WheelWriter 2
IBM System 2000 Model 5216-II
IBM WheelPrinter E
IBM WheelPrinter E Model 1
IBM WheelWriter
IBM WheelWriter 3
IBM WheelWriter 5
IBM WheelWriter 6
IBM WheelWriter 6 Series II
IBM WheelWriter 10 Series II
IBM WheelWriter 15 Series II
IBM WheelWriter 20
IBM WheelWriter 25
IBM WheelWriter 30
IBM WheelWriter 30 Series II
IBM WheelWriter 35
IBM WheelWriter 40
IBM WheelWriter 50
IBM WheelWriter 50 Series II
IBM WheelWriter 70
IBM WheelWriter 70 Series II
IBM WheelWriter 1000
IBM WheelWriter 1500
IBM WheelWriter 2000
IBM WheelWriter 2500
IBM WheelWriter 3000
IBM WheelWriter 3500
IBM WheelWriter 5000
IBM WheelWriter 6783
IBM WheelWriter 6784
IBM WheelWriter 6787
IBM WheelWriter 6788
IBM WheelWriter 7000
IBM WheelWriter Series II
Lexmark Personal WheelWriter II
Lexmark WheelWriter 15 Series II
Lexmark WheelWriter 30 Series II
Lexmark WheelWriter 70 Plus Series II
Panasonic FX 1800 TS
Panasonic Jetwriter III
Panasonic Jetwriter IV
Panasonic KX E-3000
Panasonic KX E-3008
Panasonic KX E-3100
Panasonic KX E-7000
Panasonic KX E-7000 CB1
Panasonic KX E-7000 CB2
Panasonic KX E-7000 CB3
Panasonic KX E-7000 CB4
Panasonic KX E-7000 CB6
Panasonic KX E-7000 I
Panasonic KX E-7500
Panasonic KX E-7500 S
Panasonic KX E-8000