Patent ID: 8534806

Claim:
A fluid ejection device ejecting a fluid, comprising: a fluid container that includes a container portion and a withdrawal portion, wherein the container portion contains a fluid for ejection, and the withdrawal portion allows withdrawal of the fluid contained in the container portion; a fluid ejection unit that ejects a fluid onto an ejection target; a delivery needle that provides a flow passage which communicates with the fluid ejection unit, the delivery needle being one of plural delivery needles; a guard cover that projects over the plural delivery needles; a guide that mates with the fluid container, and then slidably guides the withdrawal portion toward a locking position where the delivery needle sticks through the withdrawal portion; a container case that houses the fluid container; and a fastening member that fastens the fluid container at the locking position to the container case, wherein: the fluid container includes a mating portion that mates with the fastening member in proximity to the withdrawal portion; and the guard cover includes a through-hole portion that locates corresponding to the mating portion of the fluid container at the locking position.