An image forming apparatus includes a fixing device arranged downstream of a transfer portion and configured to fix a toner image on a sheet; a regulation member arranged upstream of the fixing device and configured to regulate the sheet; a rotary shaft configured to rotatably support the regulation member; an urging member configured to urge the regulation member so as to bring a tip end portion of the regulation member into contact with the transfer portion at a contact portion; and an openable and closable member provided on a main body to open an opening portion, wherein the tip end portion can be rotated from a side opposite to the rotary shaft to a side of the rotary shaft with respect to a straight line extending from the contact portion and contacting the fixing device.

A sheet conveying apparatus includes first and second drive sources, first and second driving units, each including a respective first or second roller to convey a sheet, an operating unit, and a switching unit to switch a state of the sheet conveying apparatus between a first state in which the first driving unit and the second driving unit are not connected to each other and a second state in which the first driving unit and the second driving unit are connected to each other. A first drive source driving force drives the first driving unit. A second drive source driving force drives the second driving unit. The operating unit rotates when manually operated. In the second state, operating unit rotation is transmitted to the first driving unit to rotate the first roller, and operating unit rotation is transmitted to the second driving unit to rotate the second roller.

Examples of a paper-clearance apparatus for removing jammed paper from a printer are described herein. The paper-clearance apparatus includes an outer shaft mounted transversely above a printing medium path of a printer; an inner shaft movably disposed inside the outer shaft; a roller assembly including a sliding bush mounted over the outer shaft; and a handle connected inside the inner shaft from outside a printer housing. The handle is being rotatable so that the roller connected with the inner shaft touches the jammed paper and rotates along with the jammed paper to grip the jammed paper. Further, the handle is being pullable away from the printer housing so as to pull out the jammed paper beneath the printer housing.

Examples of a paper-clearance apparatus for removing jammed paper from a printer are described herein. The paper-clearance apparatus includes an outer shaft mounted transversely above a printing medium path of a printer; an inner shaft movably disposed inside the outer shaft; a roller assembly including a sliding bush mounted over the outer shaft; and a handle connected inside the inner shaft from outside a printer housing. The handle is being rotatable so that the roller connected with the inner shaft touches the jammed paper and rotates along with the jammed paper to grip the jammed paper. Further, the handle is being pullable away from the printer housing so as to pull out the jammed paper beneath the printer housing.

A sheet guiding device includes a cover unit, a swing guide, a link member, and a contact member. The cover unit is configured to be openably disposed on a housing of an image forming apparatus. The swing guide is configured to move between a guide position at which the swing guide is open to guide a sheet and a retracted position at which the swing guide is closed. The swing guide is configured to move from the retracted position to the guide position along with closing movement of the cover unit. The link member has one end configured to be held by the housing and an opposite end engaged with the swing guide. The contact member is disposed on the cover unit. The contact member is configured to contact the link member to rotate the link member in the closing movement of the cover unit.

A sheet feeding device includes a detachable separation unit, a conveyance unit, a guide member, an urging member, and an opening and closing member. The feeding unit feeds a stored sheet. The separation unit separates sheets fed by the feeding unit one by one. The conveyance unit conveys the sheet. Urged by the urging member, the guide member guides the sheet toward the conveyance unit and rotates about a first rotating shaft. The opening and closing member opens and closes. In a state in which the opening and closing member is closed, the guide member is positioned in a first position in which the guide member forms a conveyance path. In a process in which the opening and closing member is opened, a free end of the guide member moves upwardly about the first rotating shaft, by using an urging force, from the first to a second position.

An image forming apparatus includes an image forming portion, a sheet reversing roller portion, a first sheet feeding passage, a second sheet feeding passage, a sheet a guiding member forming a retraction feeding passage for guiding upward a leading end of the sheet fed from the reversing roller portion rotating in the first direction and then for guiding the sheet, guided upward, in a direction crossing a vertical direction, the guiding member having an inner surface curved to guide one side of the sheet, and a preventing member for preventing a droop of the leading end of the sheet by contact with the sheet guided in the direction crossing the vertical direction by the sheet guiding member.

In an image forming apparatus, a sheet is guided into a first conveyor path or a second conveyor path selectively when a first cover is in a closed position, and is ejected onto the first cover when the first cover is in an open position. Upon power-up, a controller causes a first conveyor roller to rotate but if the first cover is in the open position, when a sheet sensor detects a sheet, the controller does not cause a second conveyor roller to rotate, and causes a flapper to swing from a first position to a second position, and when a front end of the sheet reaches a position downstream of an upstream end of the flapper in a conveyance direction of the sheet conveyed by the first conveyor roller, the controller causes the flapper to swing from the second position to the first position.

An image forming apparatus, including a main chassis having a discharge tray and a switchback tray in an upper position with respect to the discharge tray; an image forming unit; a discharge roller to discharge a recording sheet conveyed through the image forming unit onto the discharge tray; a duplex conveyer to invert the sheet and convey the inverted sheet to return to the image forming unit; and a switchback roller being rotatable in a normal direction to convey the sheet toward the switchback tray and a reverse direction to convey the sheet to the duplex conveyer; is provided. The main chassis includes a pair of walls, each of which extends in a vertical direction and in a conveying direction of the sheet and is arranged in adjacent to the switchback tray such that the switchback tray is interposed between the pair of walls.

A sheet handling apparatus includes: a transport path along which a sheet is transported; a first transport member disposed on one side of the transport path; and a second transport member disposed opposed to the first transport member with the transport path interposed therebetween. The first transport member and the second transport member are driven to rotate. The sheet is transported by the first transport member rotating with an outer peripheral surface thereof being in contact with a first face of the sheet, and by the second transport member rotating in a direction opposite to a rotation direction of the first transport member, with an outer peripheral surface thereof being in contact with a second face of the sheet different from the first face.