Patent ID: 7284818

Claim:
A liquid injection apparatus, comprising: a liquid retaining portion for retaining liquid; a liquid injecting head for injecting the liquid supplied from the liquid retaining portion in a predetermined injecting zone; a cap for sealing the liquid injecting head outside the liquid injecting zone; a support member extending from the cap; and a maintenance unit for discharging the liquid injected by the liquid injecting head through the interior of the cap, wherein, when the liquid injecting head is moved in the injecting zone, the cap is placed at a reference position at which the cap and the support member are escaped from the path of the liquid injecting head so that the support member is prevented from interfering with the liquid injecting head, and when the liquid injecting head is moved outside the liquid injecting zone, the cap is located at a set position at which the cap opposes the liquid injecting head and the support member contacts and supports a side surface of the liquid injecting head.