An image reading apparatus includes a reading unit, a hinge connected to the reading unit, and a cover connected to the hinge. The image reading apparatus further includes a decelerator configured to apply a damping resistance to a particular gear of the hinge, as a planet gear engages with the particular gear during movement of the cover from an open position to a closed position.

A document reader includes: a scanner unit; an ADF; a hinge that connects the scanner unit and the ADF in a way that the ADF is openable from and closable to the scanner unit by turning around a turn shaft of the hinge; and a positioning mechanism. The hinge includes a pressing member that holds the ADF open, and is arranged on a back side of the scanner unit with the turn shaft located above the pressing member. The positioning mechanism includes: a projecting portion located below the turn shaft, and formed on a surface of the hinge intersecting an axial direction of the turn shaft; a slit formed in the scanner unit, and brought into engagement with the projecting portion; and an adjusting screw that presses a lower part of the hinge from the back side of the scanner unit.

A reading apparatus includes a reading part that reads information of a document, a housing that accommodates the reading part, a document feeding port feed the document therethrough, and a cover member that is disposed on the housing and is displaceable to an open position at which the document feeding port is opened and a closed position at which the document feeding port is closed, wherein the cover member includes an opening and closing end portion on an upstream side in a transport direction of the document, the housing includes a facing portion that is a portion facing a bottom surface of the opening and closing end portion when the cover member is at the closed position, and a gap through which the document passes is formed between a part or the whole of the bottom surface of the opening and closing end portion and the facing portion.

A document pressing unit is openable with respect to an apparatus body including a placement portion on which a document is placed, and is configured to press the document from above. The document pressing unit includes a body frame, a pair of hinge units, a pair of metal fixing members, and fastening screws. The body frame is able to press the document. The hinge units respectively include hinge legs mounted on the apparatus body, and are mounted with a certain distance in a left-right direction on a rear end of the body frame to openably support the body frame with respect to the apparatus body. The fixing members fix the hinge units to the body frame, respectively. The fastening screws fasten the fixing member and the hinge unit through the body frame so that the fixing member and the hinge unit sandwich the body frame in an up-down direction.

An image forming apparatus includes a first casing, a pivotable second casing, a pivotable document cover, and a lock mechanism including a movable hook and a fixed hook. The second casing has a document support surface. When the second casing is at a first position in which the second casing covers an upper surface of the first casing, and the document cover is at a fourth position in which the document cover reveals the document support surface, the movable hook is engaged with the fixed hook. When the second casing is at the first position, and the document cover is at a third position in which the document cover covers the document support surface, the movable hook is disengaged from the fixed hook.

An image reading apparatus includes a platen, a copyholder pressed against a reading surface of a document placed on the platen, and a placing part movably provided, on which a non-pressed portion of the document that is not pressed by the copyholder is placed.

An image reading apparatus has an image reading portion, a sheet feeding portion feeding the sheet to the image reading portion, a rotatably connecting portion which rotatably connects the sheet feeding portion to the image reading portion, a fixing member, a first fastening member for fastening the fixing member to a frame of the sheet feeding portion, and a second fastening member for fastening the fixing member to the rotatably connecting portion in a state where the frame is nipped between the rotatably connecting portion and the fixing member. When the fastening of the first fastening member is released and the fastening of the second fastening member is released, the fixing member is detachable from the frame and the rotatably connecting portion.

A multi-function apparatus includes a body, an image reading unit, a document cover and a locking member. The image reading unit is movable between a closed position and an opened position. The document cover is movable between a closed position and an opened position. The locking member is movable to a first position and a second position and includes a first engagement portion and a second engagement portion. In response to a movement of the document cover to the opened position, the locking member moves to the first position and locks the image reading unit to the closed position. In response to a movement of the image reading unit to the opened position, the locking member moves to the second position and locks the document cover to the closed position.

A hinge apparatus for a cover of an image forming apparatus has a hinge body with supporting brackets, movably inserted into a coupling hole positioned in a main body of the image forming apparatus, a hinge cam connected to the cover and pivotably connected to the supporting brackets, and a pressure device disposed at the hinge body to press the hinge cam. Accordingly, the hinge apparatus can be implemented with a simple and easy assembly operation, since it is not a complicated structural connection among the component parts of the hinge apparatus.

An image forming apparatus includes an apparatus body including a housing cover, a printer, a discharge roller, a discharge portion, a scanner, and a document cover. The discharge portion is recessed downward in a vertical direction relative to an upper surface of the housing cover and includes a first wall and a second wall, and a receiving surface situated therebetween. The scanner is disposed downstream from the discharge portion in a sheet discharge direction, and includes a document table and an image sensor. The document cover is configured to pivot between a first position at which the document cover covers the document table of the scanner from above and a second position that is different from the first position. When the document cover is located at the first position, an upper surface of the document cover is substantially level with a downstream end of the receiving surface.