A tension detection device according to an embodiment includes a base, a support member, a continuous body, an external force detection unit, and a tension detection unit. One end or both ends of the support member are fixed to the base. The support member has an external force measurement section integrally provided at the one end or both ends thereof. The continuous body is conveyed while wound around an outer circumference of the support member. The external force detection unit is provided at the external force measurement section of the support member. The external force detection unit detects an external force. The tension detection unit detects tension of the continuous body based on a detection result from the external force detection unit.

A tension detection device according to an embodiment includes a base, a support member, a continuous body, an external force detection unit, and a tension detection unit. One end or both ends of the support member are fixed to the base. The support member has an external force measurement section integrally provided at the one end or both ends thereof. The continuous body is conveyed while wound around an outer circumference of the support member. The external force detection unit is provided at the external force measurement section of the support member. The external force detection unit detects an external force. The tension detection unit detects tension of the continuous body based on a detection result from the external force detection unit.

A tension applying device is attached to a sheet conveyance device. The sheet conveyance device includes a feeding roller for feeding a continuous-form sheet and a winding roller for winding the continuous-form sheet fed from the feeding roller. The tension applying device applies tension to the continuous-form sheet between the feeding roller and the winding roller. The tension applying device includes a guide rail, a slider, a tension bar, and an angle adjustment mechanism. The guide rail is inclined downward toward a continuous-form sheet. The slider slides along the guide rail. The tension bar is supported by the slider and brought into pressure contact with the continuous-form sheet by weight of the slider. The angle adjustment mechanism adjusts an inclination angle of the guide rail with respect to a horizontal direction.

Provided are: a holding unit configured to rotatably hold a roll body on which a medium is wound; a transport unit configured to transport the medium unwound from the roll body; a tension applying unit configured to press the medium between the holding unit and the transport unit to apply tension to the medium; a driving portion configured to provide driving force to the tension applying unit; a control unit configured to control the transport unit and the driving portion; and a detector configured to detect a load applied to the transport unit, and the control unit controls the driving force by the driving portion on the basis of the load detected by the detector to adjust the tension applied to the medium.

Provided are: a holding unit configured to rotatably hold a roll body on which a medium is wound; a transport unit configured to transport the medium unwound from the roll body; a tension applying unit configured to press the medium between the holding unit and the transport unit to apply tension to the medium; a driving portion configured to provide driving force to the tension applying unit; a control unit configured to control the transport unit and the driving portion; and a detector configured to detect a load applied to the transport unit, and the control unit controls the driving force by the driving portion on the basis of the load detected by the detector to adjust the tension applied to the medium.

A recording device includes a holding part that holds a roll body of a recording medium, a rotation mechanism that rotates the roll body, a pair of transport rollers that transport the recording medium by nipping and rotating the recording medium, a recording part that performs recording on the transported recording medium, a first detection part that detects a leading end of the recording medium, and a notification part that notifies information, wherein whether or not the leading end is detected by the first detection part is monitored in a first monitoring operation in a state in which nipping by the pair of transport rollers is released, and when the leading end has been detected by the first detection part, a first notification operation of causing the notification part to notify that the leading end has been detected by the first detection part is performed.

A recording device includes a holding part that holds a roll body of a recording medium, a rotation mechanism that rotates the roll body, a pair of transport rollers that transport the recording medium by nipping and rotating the recording medium, a recording part that performs recording on the transported recording medium, a first detection part that detects a leading end of the recording medium, and a notification part that notifies information, wherein whether or not the leading end is detected by the first detection part is monitored in a first monitoring operation in a state in which nipping by the pair of transport rollers is released, and when the leading end has been detected by the first detection part, a first notification operation of causing the notification part to notify that the leading end has been detected by the first detection part is performed.

An example method comprises operating a drive unit to advance a substrate in a substrate advance direction toward a printing station. At the printing station, a first line is printed onto the substrate. A drive unit is instructed to advance the substrate in the substrate advance direction by a target amount, and a second line is printed onto the substrate. The distance between the first and second lines in a direction perpendicular to the substrate advance direction is calculated and, based on the calculated difference, a tension of the substrate is modified.

An example method comprises operating a drive unit to advance a substrate in a substrate advance direction toward a printing station. At the printing station, a first line is printed onto the substrate. A drive unit is instructed to advance the substrate in the substrate advance direction by a target amount, and a second line is printed onto the substrate. The distance between the first and second lines in a direction perpendicular to the substrate advance direction is calculated and, based on the calculated difference, a tension of the substrate is modified.

An image forming apparatus comprises a conveyance unit configured to convey a long-shaped print medium in a longitudinal direction, an image forming unit configured to form an image on the print medium, a drying unit configured to dry the print medium on which an image has been formed in the image forming unit, and a control unit configured to, after interrupting image formation on the print medium by the image forming unit, control the image forming unit and the conveyance unit so as to convey and then stop at an ejection position at which the portion has been ejected from inside of the drying unit a portion of the print medium on which image formation has been performed.