HP Cartridge C6615NL is compatible in the following HP Models:

HP PSC 900 All-in-One Printer series

HP PSC 920 ALL-IN-ONE PRINTER - C8434A
HP PSC 950 ALL-IN-ONE PRINTER - C8436A
HP PSC 950VR ALL-IN-ONE PRINTER - C8435A
HP PSC 950XI ALL-IN-ONE PRINTER - C8437A
HP PSC 950XI REFURBISHED ALL-IN-ONE PRINTER - C8437AR

HP PSC 700 All-in-One Printer series

HP PSC 720 ALL-IN-ONE PRINTER - C8425A
HP PSC 750 ALL-IN-ONE PRINTER - C8426A
HP PSC 750 ALL-IN-ONE PRINTER - C8429A
HP PSC 750XI ALL-IN-ONE PRINTER - C8427A
HP PSC 750XI REFURBISHED ALL-IN-ONE PRINTER - C8427AR
HP PSC 760 ALL-IN-ONE PRINTER - C8428A

HP PSC 500 All-in-One Printer series

HP PSC 500/500XI ALL-IN-ONE PRINTER - C7281A
HP PSC 500/500XI REFURBISHED ALL-IN-ONE PRINTER - C7281AR

HP Officejet v All-in-One Printer series

HP OFFICEJET V40 ALL-IN-ONE PRINTER - C8416A

HP Deskjet 900 Printer series

HP DESKJET 940C PRINTER - C6431B

HP Deskjet 800 Printer series

HP DESKJET 845C PRINTER - C8934A

HP Deskjet 6600 Printer series

HP DESKJET 6620 COLOR INKJET PRINTER - C9034A
HP DESKJET 6620 COLOR INKJET PRINTER - C9034B
HP DESKJET 6620XI COLOR INKJET PRINTER - C9056A
HP DESKJET 6623 COLOR INKJET PRINTER - C9034C
HP DESKJET 6628 COLOR INKJET PRINTER - C9034D

HP Deskjet 3810/3820 Printer series

HP DESKJET 3820 COLOR INKJET PRINTER - C8952A
HP DESKJET 3820 COLOR INKJET PRINTER - C8952D
HP DESKJET 3820 REMARKETED COLOR INKJET PRINTER - C8952AR
HP DESKJET 3820V COLOR INKJET PRINTER - C8952B
HP DESKJET 3820W COLOR INKJET PRINTER - C8952C