Checking the Ink Shelf Life You can use the display to check the shelf lives of the inks in slots 1 to 6.ProcedurePress [MENU]. Press [▼] several times to display the screen shown below. Press [▶], then [▼] to display the screen shown below.Press [▶] to display the screen shown below.You can check the shelf lives of the inks.Press [▶].Press [▲] or [▼] to display a different slot.Press [MENU], then [◀] to go back to the original screen.MEMO: The shelf life items (the expiration year, month, and day) are blank when:The ink cartridge's IC chip is broken or has been lost.A system error is occurring on the printer.