A system includes an image forming station, which is configured to apply droplets of one or more printing fluids to a target substrate, so as to form an image thereon, and a substrate conveyor, which includes one or more perforated plates having multiple openings, and is configured to grip and move the target substrate to and from the image forming station for forming the image, the substrate conveyor includes one or more rotatable elements, which are fitted in the respective openings, and are configured to provide mechanical support to the target substrate, and when the target substrate moves over the one or more rotatable elements, at least one of the rotatable elements is configured to rotate in response to a physical contact with the target substrate.

A drum conveyance mechanism includes a drum, a drive motor to rotate the drum to convey a sheet medium along an outer circumferential surface of the drum, a first power supply to supply an operating voltage to the drive motor, a driven roller to rotate as the drum rotates, a rotation brake to prevent rotation of the driven roller, a second power supply to supply an operating voltage to the rotation brake, and a power supply switch to switch a state of supply of the operating voltage from the first power supply and the second power supply.

A system and method for performing quality control in a digital printing system (DPS) is provided. The DPS includes an impression station for transferring an ink image from a surface of an intermediate transfer member to a substrate. The impression station includes an impression cylinder housing one or more grippers operable to grasp and hold a leading edge of the substrate as it passes through the DPS, for conveying the substrate along the impression cylinder during the transfer of the ink image. An imaging device is operable, during advancement of the substrate on the impression cylinder, to capture a digital image including a region of interest (ROI) that is associated with at least a portion of the grippers and at least a portion of the substrate. A controller is configured, based on the digital image, to indicate an error in a position of the substrate relative to the grippers.

A printer includes a recording head, a belt, a scale unit, a reading head, a gripping unit. The belt includes a first surface configured to support a medium and a second surface opposite to the first surface. The gripping unit includes a first abutting portion that comes into contact with the first surface, and a second abutting portion that comes into contact with the second surface. The gripping unit can be changed between a gripping state of moving along with the glue belt while gripping the glue belt, and a release state of being separated from the glue belt. When the gripping unit is in the release state, the second abutting portion is separated from the second surface in conjunction with the first abutting portion being separated from the first surface.

A device for further processing web- or sheet-type stock comprises a further-processing section, in which stock that is supplied on the input side can be processed into printed products. The further-processing section comprises, in the guide path of a processing line through which the stock has run, at least one first combining device relative to the stock path, which can combine one- or multi-layer stock sections to a bundle; a second combining device which can combine the bundles formed by the first combining device to a bundle stack downstream of the first combining device; and a transverse folding device which is arranged functionally downstream of the second combining device and which transversely forms the bundles or bundle stacks relative to the conveying device on the input side when they exit the second combining device. A device for joining several layers is placed in the guide path, such that it can join several or all of the stock sections combined in the first combining device into a bundle, before they are received by the second combining device and is associated with, are arranged downstream of the first combining device. During production of the products, a combined bundle is stapled before it is combined with one or more other bundles and is then transversely folded. In addition, a longitudinal cutting device is provided in the guide path downstream of the transverse folding device.

The ink jet recording apparatus includes: transport means that transports paper having a recording surface, on which an image is formed using an aqueous ink, along a transport path; heating means that is provided along the transport path; guide means that is provided along the transport path and supports the paper using a guide surface having suction holes; and suction means that suctions the paper through the suction holes of the guide surface, a suction region and a non-suction region are set when the paper is transported, the suction region in which the paper is suctioned by the suction means is set upstream of a first position of the transport path, the non-suction region is set downstream of the first position, and the first position is set at a position in which a residual water content in the paper is 1.0 g/m.sup.2 to 3.0 g/m.sup.2.

The ink jet recording apparatus includes: transport means that transports paper having a recording surface, on which an image is formed using an aqueous ink, along a transport path; heating means that is provided along the transport path; guide means that is provided along the transport path and supports the paper using a guide surface having suction holes; and suction means that suctions the paper through the suction holes of the guide surface, a suction region and a non-suction region are set when the paper is transported, the suction region in which the paper is suctioned by the suction means is set upstream of a first position of the transport path, the non-suction region is set downstream of the first position, and the first position is set at a position in which a residual water content in the paper is 1.0 g/m.sup.2 to 3.0 g/m.sup.2.

A method for avoiding collisions in a digital inkjet printing machine, a method and a device for actuator-based lifting movement of inkjet heads. A sensor/camera monitors the sheets as they travel towards the inkjet heads. In order to avoid collisions, the inkjet heads are raised and lowered again individually and in an oscillation-optimized manner when a defective sheet is detected. The machine does not need to be stopped in the event of defective sheets. Advantageously, rejects can thus be reduced and the performance of the machine can be exploited better.

A liquid ejecting apparatus including a liquid ejecting unit that ejects a liquid onto a medium, a transporting mechanism that transports the medium, a member having concave portions, which is arranged downstream of the liquid ejecting unit in a transporting direction of the medium, an introducing mechanism that introduces the medium to the concave portions, the transporting mechanism having rollers that come into contact with the medium at a plurality of contact positions in a direction that intersects the transporting direction, and the concave portions being arranged at positions that correspond to a position between neighboring ones of the contact positions in the transporting direction. By giving the liquid ejecting apparatus such a structure, wrinkles that occur in a liquid ejection region can be suppressed.

There are provided a medium conveying device and an image recording apparatus that can convey a medium without the generation of wrinkles and floating. Projections having the same size are regularly disposed on the peripheral surface of an image recording drum to form recessed portions and protruding portions on the peripheral surface of the image recording drum. An interval between the projections disposed in a middle region is set to be smaller than an interval between the projections disposed in both end regions. Accordingly, when a sheet is pressed against the peripheral surface of the image recording drum by a pressing roller, forces for pulling the sheet to the outside from the middle in a width direction can be generated. As a result, the sheet can be made to come into close contact with the peripheral surface of the image recording drum without the generation of wrinkles and floating.