Question: what is the difference between hp 61 ink and hp 61xl ink?
Answer: The difference between the HP 61 and HP 61XL is that the HP 61 XL provides twice or almost twice as much ink. Your OFFICEJET 4630 is compatible with the HP 61 ink cartridges and the HP 61 XL ink cartridges. XL is high yield ink. It will work with your printer.