Patent ID: 8346122

Claim:
An image forming device comprising: a casing formed with an opening on a top side; an image forming section disposed within the casing; a cover member having a first side and a second side opposite from the first side, the cover member being pivotable with respect to the casing about the first side between an open position and a closed position for selectively opening and closing the opening, the first side being on an upstream side of the second side in a first direction in which a recording medium is discharged from the casing; a lock member that is movable between a locking position and an unlocking position to selectively lock and unlock the cover member in the closed position, wherein the lock member in the locking position locks the cover member in the closed position; a knob provided to the cover member near the second side, enabling a user to hold the knob to move the cover member between the open position and the closed position, the knob being movable from an original position toward the open position of the cover member, wherein the lock member is moved to the unlocking position as the knob is moved from the original position toward the open position, the cover member includes a grip member at which the knob is disposed, the grip member protruding in the first direction; and an auxiliary tray pivotable between a first posture and a second posture with respect to the grip member, the auxiliary tray being configured to support the recording medium discharged from the casing, wherein the grip member has an upper surface, and the auxiliary tray in the first posture lies along the upper surface of the grip member, and the auxiliary tray in the second posture is upright with respect to the upper surface of the grip member.