Patent ID: 7828415

Claim:
An ink cartridge holding device for holding an ink cartridge, comprising: a holder holding the ink cartridge and having an opening so as to allow the ink cartridge to be inserted thereinto and withdrawn therefrom through the opening; a door which is attached to the holder and is pivotable between (a) an open position at which the opening is uncovered for permitting insertion and withdrawal of the ink cartridge through the opening into and from the holder and (b) a closed position at which the opening is covered for inhibiting the insertion and withdrawal of the ink cartridge through the opening; a locking member which is attached to the door for locking the door at the closed position; and an interference preventing portion which is provided at the door for preventing an interference of the locking member with the withdrawal of the ink cartridge when the door is placed at the open position, wherein the locking member is displaceable relative to the door, and wherein the locking member has an engaging portion being located at a position in which the engaging portion engages with an engaged portion provided on the holder so as to lock the door at the closed position, while being released from the engaged portion due to displacement of the locking member so as to permit the door to be pivoted toward the open position.