Image forming apparatus provided with liquid retainer for retaining and draining liquid

An image forming apparatus comprising:

• a casing having an opening and comprising:
• a base frame;
• a top cover provided at the base frame and having a first edge extending in an extending direction, the top cover providing a top surface of the casing;
• and
• an access cover provided at the base frame and configured to pivotally move relative to the base frame between an open position for opening the opening and a closed position for covering the opening, the access cover having an upper region providing a second edge and a part of the top surface of the casing, the second edge being positioned along the first edge when the access cover is at the closed position, the upper region of the access cover at the closed position and the top cover defining a boundary therebetween;
• a grooved portion having a groove positioned below the first edge and the second edge, the groove being elongated in the extending direction to have an outermost end in the extending direction, the groove having a first inclined surface inclined downward toward the outermost end, the grooved portion including a liquid retaining member having an upper surface facing upward to constitute a bottom surface of the groove, and a lower surface opposite to the upper surface, the upper surface having a second inclined surface inclined diagonally upward in a direction from the top cover to the access cover, the lower surface having a third inclined surface inclined diagonally upward in the direction from the top cover to the access cover;
• and
• a cartridge configured to be attached to and detached from the casing through the opening, the cartridge being positioned below the boundary and the grooved portion.

An image forming apparatus comprising:

• a casing having an opening and comprising:
• a base frame;
• a top cover provided at the base frame and having a first edge, the top cover providing a top surface of the casing;
• and
• an access cover provided at the base frame and configured to pivotally move relative to the base frame between an open position for opening the opening and a closed position for covering the opening, the access cover having an upper region providing a second edge and a part of the top surface of the casing, the second edge being positioned along the first edge when the access cover is at the closed position, the upper region of the access cover at the closed position and the top cover defining a boundary therebetween;
• an extension tray pivotally movably supported to the access cover;
• and
• a grooved portion having a groove positioned below the first edge and the second edge, the grooved portion having a first wall providing a bottom of the groove, the first wall having a first end close to the top cover and a second end close to the access cover, the grooved portion also having a second wall extending upward from the second end, the second wall having a first upper edge region positioned in alignment with the extension tray, and a second upper edge region positioned offset from the extension tray, the first upper edge region being lower than the second upper edge region.