The recording device includes an adhesive belt extending across a plurality of rotating bodies configured to support and convey a recording medium, a first sensor configured to detect that the recording medium is separated relative to the adhesive belt in a first range, a second sensor configured to detect that the recording medium P is separated relative to the adhesive belt in a second range within the first range, a take-up unit configured to take up the recording medium, and a control unit configured to control the take-up unit so as to take up the recording medium when the first sensor detects that a separation position of the recording medium is within the first range, and control the rotating body to stop movement of the adhesive belt when the second sensor detects that the separation position of the recording medium is within the second range.

A printer includes a transportation unit that transports roll paper, a winding unit that winds up the transported roll paper, and a controller that controls the transportation unit and the winding unit. The controller switches between thresholds for a torque limit of the winding unit on the basis of inertia of the winding unit and a speed at which the roll paper is transported when the winding unit winds up the roll paper in synchronization with a transportation operation of the transportation unit.

The roller-to-roller conveyance control apparatus includes an amplitude target setting unit that sets an amplitude target value of the tension deviation; an adjustment execution command generation unit that provides a command to adjust the control gain; an adjustment manipulated-variable output unit that outputs an adjustment manipulated variable; a manipulated-variable amplitude determination unit that increases the amplitude of the adjustment manipulated variable until the amplitude of the tension deviation becomes larger than the amplitude target value; and a control-gain calculation device that calculates the control gain from the amplitude and the vibration period of the tension deviation. A tension-shaft speed controller controls a tension-control-shaft motor on the basis of the line speed reference and the adjustment manipulated variable during the adjustment of the control gain.

The roller-to-roller conveyance control apparatus includes an amplitude target setting unit that sets an amplitude target value of the tension deviation; an adjustment execution command generation unit that provides a command to adjust the control gain; an adjustment manipulated-variable output unit that outputs an adjustment manipulated variable; a manipulated-variable amplitude determination unit that increases the amplitude of the adjustment manipulated variable until the amplitude of the tension deviation becomes larger than the amplitude target value; and a control-gain calculation device that calculates the control gain from the amplitude and the vibration period of the tension deviation. A tension-shaft speed controller controls a tension-control-shaft motor on the basis of the line speed reference and the adjustment manipulated variable during the adjustment of the control gain.

A printing apparatus includes a transport unit which includes a transport roller pair which transports a medium in a transport direction, a printing unit which prints onto the medium, a winding unit which winds the printed medium, and a tension application unit which applies a tension to the medium at a position between the transport roller pair and the winding unit. The tension application unit includes a pair of arms which are capable of rotating. A tension bar is supported on one end of the arms and comes into contact with the medium. The bar is rotated from an upper limit position to a lower limit position by transportation of the transport unit being performed two or more times.

The recording device includes an adhesive belt extending across a plurality of rotating bodies configured to support and convey a recording medium, a first sensor configured to detect that the recording medium is separated relative to the adhesive belt in a first range, a second sensor configured to detect that the recording medium P is separated relative to the adhesive belt in a second range within the first range, a take-up unit configured to take up the recording medium, and a control unit configured to control the take-up unit so as to take up the recording medium when the first sensor detects that a separation position of the recording medium is within the first range, and control the rotating body to stop movement of the adhesive belt when the second sensor detects that the separation position of the recording medium is within the second range.

A printer includes a transportation unit that transports roll paper, a winding unit that winds up the transported roll paper, and a controller that controls the transportation unit and the winding unit. The controller switches between thresholds for a torque limit of the winding unit on the basis of inertia of the winding unit and a speed at which the roll paper is transported when the winding unit winds up the roll paper in synchronization with a transportation operation of the transportation unit.

The recording device includes an adhesive belt extending across a plurality of rotating bodies configured to support and convey a recording medium, a first sensor configured to detect that the recording medium is separated relative to the adhesive belt in a first range, a second sensor configured to detect that the recording medium P is separated relative to the adhesive belt in a second range within the first range, a take-up unit configured to take up the recording medium, and a control unit configured to control the take-up unit so as to take up the recording medium when the first sensor detects that a separation position of the recording medium is within the first range, and control the rotating body to stop movement of the adhesive belt when the second sensor detects that the separation position of the recording medium is within the second range.

The recording device includes an adhesive belt extending across a plurality of rotating bodies configured to support and convey a recording medium, a first sensor configured to detect that the recording medium is separated relative to the adhesive belt in a first range, a second sensor configured to detect that the recording medium P is separated relative to the adhesive belt in a second range within the first range, a take-up unit configured to take up the recording medium, and a control unit configured to control the take-up unit so as to take up the recording medium when the first sensor detects that a separation position of the recording medium is within the first range, and control the rotating body to stop movement of the adhesive belt when the second sensor detects that the separation position of the recording medium is within the second range.

A paper winder includes a first winding core that is provided in a first arm turning centering on a rotating shaft and on which the paper should be wound, a first motor that drives the first winding core, a second winding core that is provided in a second arm turning centering on the rotating shaft and on which the paper should be wound next to the first winding core, and a controller that performs rotation control for the first motor and a second motor. In the rotation control, after, according to the turning of the second arm, completion of the winding of the paper by the first winding core and after a position of the second winding core has reached a position where the paper should be wound, during an operation of a traverse cutter that cuts the paper near the second winding core, when a torque value of the second motor is equal to or larger than a torque reference value, the controller switches a control mode of the second motor from speed control to torque control and perform tension correction control for adjusting the torque value of the second motor such that tension of the paper falls within a target range.