A roll sheet, in which a continuous sheet is wound in a roll form, is caused to rotate in a forward direction to supply the sheet to a printing unit. First and second sensors are arranged at positions facing an outer circumferential surface of the roll sheet and deviated in an axis line direction of the roll sheet. Outputs of the first and second sensors are changed in accordance with a distance to a sheet of the roll sheet. A rotation direction of the roll sheet is switched from a forward direction to a reverse direction on the basis of the outputs of the first and second sensors while the roll sheet is being rotated in the reverse direction.

A recording device includes a carriage including a recording head configured to discharge liquid onto a medium and being movable in an intersecting direction, the intersecting direction intersecting a transport direction of the medium, a suction platen facing the recording head and being configured to suck the medium, a transport mechanism provided upstream from the suction platen in the transport direction and configured to transport the medium downstream in the transport direction, a drying unit located downstream from the recording head in the transport direction, a medium suction mechanism configured to suck the medium fed to the drying unit, and a controller configured to control the transport mechanism. The controller is configured to form a curved portion by curving between the drying unit and the suction platen in the transport direction, a part of the medium.

A printer for pulling out a paper wound in a form of a wound roll is disclosed. The printer may comprise a cartridge configured to accommodate the paper, a housing in which the cartridge is mounted, a cover moveable between an open position for opening the top surface of the housing and a closed position for closing the top surface of the housing, a first printing unit mounted to the housing, and a second printing unit mounted to the cover. The paper is pulled out between the first printing unit and the second printing unit, and the second printing unit has a decurling part formed thereon. The decurling part comes into surface-contact with the paper on the upper side of the paper in the process of pulling out the paper when the cover is in the closed position.

A transport device unwinds a medium from a roll body to which a shaft member is mounted and transports the medium. The transport device includes an accommodation portion configured to accommodate the roll body, a main body portion to which the accommodation portion is mounted, and a roller pair configured to nip the medium. The accommodation portion and the main body portion are relatively movable. The main body portion includes a rack configured to engage with a gear of the shaft member. The rack is engaged with the gear when the accommodation portion moves relative to the main body portion to be pulled out of the main body portion.

A roll paper steering device includes a guide rail fixed to a main body frame, a guide engaged with the guide rail, a holding shaft fixing member supported by the guide rail via the guide, a roll paper holding unit including a roll shaft and mounted to the holding shaft fixing member, a movable member configured to adjustably mount to the holding shaft fixing member, a nut member that includes an internal thread portion that screws into the external thread portion and that is fixed to the main body frame in a posture where the axis of the external thread portion is parallel with the guide rail, a first adjustment unit configured to adjust the posture of the holding shaft fixing member, and a second adjustment unit configured to adjust the position at which the movable member.

A Web-Fed Inkjet Digital Printing Machine suitable for printing any kinds of Flexible substrates (materials), comprising of one or more printing stations wherein Web or Film path is brought vertically or angularly downwards at an angle between 10 to 175 from horizontal position or radially downwards at a radius of 5 millimeters to 4 meters after each colour or stage of printing. The Web or Film path can also be brought downwards first vertically or angularly and then radially or vice-versa, at angles between 10 to 175 and radius of 5 millimeters to 4 meters after each colour or stage of printing. The dryers are positioned on both or either sides and printheads are positioned along the Web or Film. An automatic control for guiding and tension control and pre-coater and post-coater for inline coating of the Web or Film is also available.

A transport device includes a first driving roller configured to contact an outer circumferential surface of a roll body on which a medium is wound, and apply rotational torque to the roll body, a second driving roller configured to unwind the medium from the roll body, a first drive unit configured to drive the first driving roller, a second drive unit configured to drive the second driving roller, and a control unit configured to control the first drive unit and the second drive unit. The control unit controls the first drive unit, based on a magnitude of a load current flowing in the second drive unit.

A liquid ejection apparatus includes a conveying unit, a winding unit, a printing unit, and a rotation control unit. The conveying unit is configured to intermittently convey a printing medium by a predetermined feed amount. The winding unit is configured to wind the printing medium conveyed by the conveying unit. The printing unit is configured to perform printing on the conveyed printing medium. The rotation control unit is configured to control the winding unit to rotate in a winding direction at a predetermined timing after the conveying unit has started to convey the printing medium intermittently, and then cause the winding unit to rotate in a reverse direction opposite to the winding direction.

In a movable portion state being a state of a print movable portion including a roll core holder unit configured to support one end portion and another end portion of a roll core, there exist an open state and a closed state. The print movable portion is configured to be movable so that the movable portion state is the open state or the closed state. The roll core holder unit is provided with a support portion. In a support state in which the support portion supports the one end portion and the another end portion, as the movable portion state transitions from the open state to the closed state, a first fitting portion fits into the one end portion and a second fitting portion fits into the another end portion.

An embodiment of a printer according to the present invention includes: a container configured to contain a roll body into which a belt-shaped print medium is wound; a frame including a first opening, the frame arranged to be a portion of the container; and a body case provided outside the frame and arranged to be a portion of a bottom surface of the container, the body case including a first protrusion part protruding toward the first opening.