Provided are a medium conveying device and an inkjet printer that can convey a medium stably. In a case where a paper P is conveyed along a plane in a conveying unit 40, a posture of the paper P is corrected by a posture correction unit 20, and then the paper P is delivered to the conveying unit 40 by a delivery unit 30. The delivery unit 30 holds a leading end portion of the paper P of which the posture is corrected by the posture correction unit 2 with a paper holding bar 31, and delivers the paper P to the conveying unit 40 by moving the paper holding bar 31 linearly along a conveying direction of the paper P by the conveying unit 40.

A sheet processing machine, in particular a sheet-fed printing press or a sheet die cutting machine, has a sheet infeed having at least one stop for feeding and aligning sheets, and has a device for monitoring sheet travel along a sheet transport path of the sheet infeed. At least one measurement system, for detecting a lateral sheet edge of the sheet, is provided. A method is also provided for monitoring sheet travel along a sheet transport path in a sheet infeed. An alternative device and an alternative method for monitoring sheet travel along a transport path of a sheet processing machine are provided. At least one sensor, which can be associated with the lateral region of the sheet transport path, and which is configured for the optical detection and determination of the position of a mark on the sheet, is utilized.

A medium transport device 29, a liquid ejection device 13, and a post-process device 15 include a recording path 38; a first transport path 40 arranged downstream of the recording path 38; an inversion path 39 arranged downstream of the recording path 38; a first branch section 51; and a blower section 50 configured to transport the medium 19 to either the first transport path 40 or the inversion path 39, wherein when a medium 19 that is transported first is defined as a first medium and a medium 19 that is transported subsequently to the first medium is defined as a second medium, in a case where the blower section 50 switches a transport destination between the first medium and the second medium, the blower section 50 starts the switching operation while the first medium is passing through the first branch section 51.

A method and a device for monitoring a post print processing machine through which printed products are successively transported. An image recording device is assigned to the post print processing machine and connected to a computer unit for recording during each operating cycle an image series with at least two images of a printed product, spaced apart by a time interval. The images of the image series are transmitted to the computer unit and the images are displayed in real time on a display device that is connected to the computer unit.

A sheet conveyance apparatus includes a housing configured to store a sheet conveyance unit for conveying a sheet, an opening/closing unit configured to be openably and closably provided with respect to the housing, and pivotable between a closed position and an opened position, and a damping unit that is included in the opening/closing unit and configured to damp a movement of the opening/closing unit from the closed position to the opened position, wherein when the opening/closing unit is in the closed position, the opening/closing unit is not subjected to a resistance force of applying a load to the movement of the opening/closing unit by the damping unit, and wherein when the opening/closing unit is pivoted from the closed position to the opened position, the opening/closing unit is subjected to the resistance force of applying the load to the movement of the opening/closing unit by the damping unit.