A reverse roller pulls in a sheet from a first conveying path to a second conveying path by conveying the sheet in a first direction and deliver the sheet from the second conveying path to a third conveying path by reversing the conveyance direction of the sheet from the first direction to a second direction. A clutch transmits drive power of a motor to the reverse roller and controls a rotation direction of the reverse roller. A controller controls a reverse timing of the reverse roller according to an actual length of a sheet. A guidance member guides the sheet where an image is formed on a first surface from a first conveying path to a second conveying path and guides the sheet guided to the second conveying path to a third conveying path. The clutch further controls the guidance member.

A medium transport unit includes an upstream route in which a print sheet is transported, a first switchback route, a second switchback route, a first guide route, a second guide route, a guide flap configured to switch the route so that the print sheet in the upstream route is transported either toward the first guide route or toward the second guide route, a first discharge route from which the print sheet in the first switchback route is discharged, a second discharge route from which the print sheet in the second switchback route is discharged, and a downstream route passing between the first switchback route and the second switchback route and having an upstream end connected to a junction of downstream ends of the first discharge route and the second discharge route.

A printing apparatus includes: a transport roller configured to transport a medium through a transport path; a printing unit configured to perform printing on the medium transported by the transport roller through the transport path; an intermediate roller configured to transport again, to the transport path, the medium transported through an inversion path in a reverse direction to a transport direction of the medium to invert a front surface and a back surface of the medium, the inversion path including a branching point where the inversion path branches from the transport path at an upstream side of the transport roller in the transport direction, the inversion path merging with the transport path again at an upstream side of the branching point in the transport direction; a device disposed in the transport path and between the transport roller and the intermediate roller; a first driving device configured to drive the transport roller; and a second driving device configured to drive the intermediate roller, in which the intermediate roller includes an electromagnetic clutch mechanism.

If it is determined that a sheet on which image data of the front cover is to be printed is the particular sheet, a printing apparatus prints on sheets the image data of the body in an order from an end of the body toward a head of the body, discharges the printed sheets without reversing, finally prints image data of the front cover on the particular sheet, and discharges the particular sheet without reversing by the reversing unit, or firstly prints a mirror image of the image data of the front cover on the particular sheet, discharges the particular sheet without reversing, next prints on sheets the image data of the body in an order from the head of the body toward the end of the body, reverses these printed sheets and discharges these printed sheet.

This disclosure is directed to an automatic sheet feeding device having a flipping mechanism which is used for a sheet. The automatic sheet feeding device has a sheet outputting tray, a sheet outputting channel, the flipping mechanism and a switching guide mechanism. The sheet outputting channel is disposed corresponding to the sheet outputting tray. The flipping mechanism is arranged between the sheet outputting channel and the sheet outputting tray. The switching guide mechanism is arranged between the sheet outputting channel and the flipping mechanism, and the switching guide mechanism is used for guiding the sheet to be conveyed to the sheet outputting tray from the sheet outputting channel or conveyed to the sheet outputting tray from the flipping mechanism. Therefore, an efficiency of duplex scanning of the automatic sheet feeding device may be improved.

If it is determined that a sheet on which image data of the front cover is to be printed is the particular sheet, a printing apparatus prints on sheets the image data of the body in an order from an end of the body toward a head of the body, discharges the printed sheets without reversing, finally prints image data of the front cover on the particular sheet, and discharges the particular sheet without reversing by the reversing unit, or firstly prints a mirror image of the image data of the front cover on the particular sheet, discharges the particular sheet without reversing, next prints on sheets the image data of the body in an order from the head of the body toward the end of the body, reverses these printed sheets and discharges these printed sheet.

A sheet flipping device includes a receiving member for receiving a sheet, a flipping volume being the volume which in operation is defined by the flipping movement of the sheet, and a flipping element for flipping the sheet around an axis of rotation within the flipping volume onto the receiving member. The sheet flipping device further includes an air vortex ring generator having an air vortex ring exit nozzle defining a translational direction of a generated air vortex ring when the generated vortex ring is in operation generated from the air vortex ring exit nozzle. The air vortex ring generator is mounted such that in operation the sheet is urged onto the receiving member by the air vortex ring during the flipping motion of the sheet through the flipping volume. A sheet stacking device and a printing apparatus include the sheet flipping device.

A recording device 11 includes a device main body 20 including a recording section 25; a placement tray 21 on which a medium M is configured to be placed; and a cassette 22 provided below the recording section 25 and the placement tray 21 and configured to accommodate a medium M. The device main body 20 includes a first path 41 configured to feed medium M placed on the placement tray 21 to the recording section 25 and further to transport the recorded medium and a second path 42 configured to transport medium placed on the placement tray 21 to the cassette 22.

This disclosure is directed to a scanning device having a which has a tray set, a movable scanning module and an automatic document feeder. The tray set has a feeding tray and a first output tray. The movable scanning module is movable between a first position and a second position. The automatic document feeder has a flip path, a feeding path, an output path, a returnable path and a feeding wheel group. The feeding path is disposed corresponding to the first position and connecting with the feeding tray and the flip path. The output path is disposed corresponding to the second position and connecting with the first output tray. The returnable path has an intersection connecting with the flip path and the output path. The movable scanning module scans two sides of the sheet at the first position and the second position respectively.

A recording device includes a device main body 20 including a recording section; a placement tray on which a medium M is configured to be placed; and a cassette provided below the recording section and the placement tray and configured to accommodate a medium M. The device main body includes a first path configured to feed medium M placed on the placement tray to the recording section and further to transport the recorded medium and a second path configured to transport medium placed on the placement tray to the cassette.