Question: what is the difference between ink cartridge 63 and 63xl?
Answer: The HP 63 and 63XL cartridges contain the same ink formulation and is compatible with exactly the same printers--the ONLY difference is the 63XL contains MORE INK since it is a high yield cartridge (XL). A standard HP 63 black ink cartridge prints 190 pages; the HP 63XL high yield black cartridge prints 480 pages.