Part number: CH563EE. Model: 301XL. HP Deskjet 1000 (includes; Deskjet 1000CSE, Deskjet 1000c, Deskjet 1000cxi, Deskjet 1000 (J110a)). HP Deskjet 1010. HP Deskjet 1050 (includes; Deskjet 1050a, Deskjet 1050A All-in-One, Deskjet 1050se, Deskjet 1050a CQ198B).