HP Cartridge C8731WN is compatible in the following HP Models:

HP Photosmart D7100 Printer series

HP PHOTOSMART D7145 PRINTER - Q7048A
HP PHOTOSMART D7155 PRINTER - Q7049A
HP PHOTOSMART D7160 PRINTER - Q7047A

HP Photosmart C6200 All-in-One Printer series

HP PHOTOSMART C6240 ALL-IN-ONE PRINTER - CC990A
HP PHOTOSMART C6250 ALL-IN-ONE PRINTER - CC989A
HP PHOTOSMART C6280 ALL-IN-ONE PRINTER - CC985A
HP PHOTOSMART C6280 ALL-IN-ONE PRINTER - CC988A
HP PHOTOSMART C6280 ALL-IN-ONE PRINTER - CC988B
HP PHOTOSMART C6280 ALL-IN-ONE PRINTER - CC991A

HP Photosmart C6100 All-in-One Printer series

HP PHOTOSMART C6150 ALL-IN-ONE PRINTER - Q8182A
HP PHOTOSMART C6180 ALL-IN-ONE PRINTER - Q8181A
HP PHOTOSMART C6185 ALL-IN-ONE PRINTER - Q8183A

HP Photosmart 8200 Printer series

HP PHOTOSMART 8250 PRINTER - Q3470A
HP PHOTOSMART 8250 PRINTER - Q3474A
HP PHOTOSMART 8250V PRINTER - Q3473A
HP PHOTOSMART 8250XI PRINTER - Q3472A
HP PHOTOSMART 8250XI PRINTER - Q3475A

HP Photosmart 3200 All-in-One Printer series

HP PHOTOSMART 3210 ALL-IN-ONE PRINTER - Q5843A
HP PHOTOSMART 3210XI ALL-IN-ONE PRINTER - Q5844A

HP Photosmart 3100 All-in-One Printer series

HP PHOTOSMART 3110 ALL-IN-ONE PRINTER - Q5833A
HP PHOTOSMART 3110V ALL-IN-ONE PRINTER - Q5835A

HP Deskjet F4100 All-in-One Printer series

HP DESKJET F4185 ALL-IN-ONE PRINTER - CB585A

HP Deskjet F2100 All-in-One Printer series

HP DESKJET F2180 ALL-IN-ONE PRINTER - CB597A

HP Deskjet D1400 Printer series

HP DESKJET D1420 PRINTER - CB630A