A printing apparatus (printer) is provided in which a base material is conveyed by a roll-to-roll method and feedback control is performed on a tension imposed on the base material, and which includes a control unit, a first drive motor (front drive motor) configured to control a speed of conveyance of conveying the base material, and a second drive motor (feeding motor, rear drive motor, winding motor) configured to control the tension imposed on the base material. In a case where a conveyance operation for conveying the base material is stopped based on detection of a foreign object, and when a speed of the first drive motor is at a predetermined value or less, the control unit stops the tension control performed by the second drive motor.

The measured winding diameter values Ds1(d) corresponding to the conveying distance d are measured by measuring the diameter of the printing medium M wound on the unwinding roll 71 by the diameter sensor 77. The measured winding diameter values Ds1(d) are smoothed by the low-pass filter to extract the smoothed winding diameter values Ds_avg1(d). By calculating the value of the diameter based on the initial diameter value Do1, the thickness value Tm and the conveying distance of the printing medium M, the calculated winding diameter values Dc1(d) are calculated. An operation of calculating the difference Ddiff1(d) between the calculated winding diameter value Dc1(d) and the smoothed winding diameter value Ds_avg1(d) while compensating for the delay by the low-pass filter is performed whereby the differences Ddiff1(d) are calculated. The calculated winding diameter value Dc1(d) are corrected by the differences Ddiff1(d).

A medium transport device includes a transport unit configured to transport a medium in a transport direction, a winding unit configured to wind the medium, a tension applying unit configured to apply a tension to the medium between the transport unit and the winding unit, a drive unit configured to drive the tension applying unit, and a controller configured to control the drive unit, in which the controller is configured to control the drive unit such that an application of the tension by the tension applying unit is released at a time when a subsequent transport operation by the transport unit is started after a termination of an winding operation of the medium by the winding unit.

A printing apparatus (printer) is provided in which a base material is conveyed by a roll-to-roll method and feedback control is performed on a tension imposed on the base material, and which includes a control unit, a first drive motor (front drive motor) configured to control a speed of conveyance of conveying the base material, and a second drive motor (feeding motor, rear drive motor, winding motor) configured to control the tension imposed on the base material. In a case where a conveyance operation for conveying the base material is stopped based on detection of a foreign object, and when a speed of the first drive motor is at a predetermined value or less, the control unit stops the tension control performed by the second drive motor.

A medium transport device includes a transport unit configured to transport a medium in a transport direction, a winding unit configured to wind the medium, a tension applying unit configured to apply a tension to the medium between the transport unit and the winding unit, a drive unit configured to drive the tension applying unit, and a controller configured to control the drive unit, in which the controller is configured to control the drive unit such that an application of the tension by the tension applying unit is released at a time when a subsequent transport operation by the transport unit is started after a termination of an winding operation of the medium by the winding unit.

The measured winding diameter values Ds1(d) corresponding to the conveying distance d are measured by measuring the diameter of the printing medium M wound on the unwinding roll 71 by the diameter sensor 77. The measured winding diameter values Ds1(d) are smoothed by the low-pass filter to extract the smoothed winding diameter values Ds_avg1(d). By calculating the value of the diameter based on the initial diameter value Do1, the thickness value Tm and the conveying distance of the printing medium M, the calculated winding diameter values Dc1(d) are calculated. An operation of calculating the difference Ddiff1(d) between the calculated winding diameter value Dc1(d) and the smoothed winding diameter value Ds_avg1(d) while compensating for the delay by the low-pass filter is performed whereby the differences Ddiff1(d) are calculated. The calculated winding diameter value Dc1(d) are corrected by the differences Ddiff1(d).

A transport apparatus includes: a support unit that supports a roll; a drive unit that rotates the support unit; a cover configured to cover at least part of the support unit; and a load applying unit that applies a load to the support unit, wherein the cover is movable between a closed position at which the cover covers at least part of the support unit and an open position which is different from the closed position, and the load applying unit applies a large load to the support unit when the cover is located at the closed position compared with the case where the cover is located at the open position.

A transport apparatus includes: a support unit that supports a roll; a drive unit that rotates the support unit; a cover configured to cover at least part of the support unit; and a load applying unit that applies a load to the support unit, wherein the cover is movable between a closed position at which the cover covers at least part of the support unit and an open position which is different from the closed position, and the load applying unit applies a large load to the support unit when the cover is located at the closed position compared with the case where the cover is located at the open position.

A suspended surface assembly is provided having a trainable surface support element, a spindle component configured for training of the trainable surface support element therearound, a take-up action module configured to drivingly rotate the spindle component to thereby effect winding of the trainable surface support element onto the spindle component or to effect unwinding of the trainable surface support element from a partially or fully wound-up condition, and a lift complex for adjusting the vertical position of the trainable surface support element and the spindle component, the lift complex including a motive power element operable to both drivingly rotate the spindle component and to drivingly raise and lower the trainable surface support element and the spindle component. A method for operating the suspended surface assembly is also provided.

The present specification relates to an embodiment of an electrode material winding apparatus, in which an electrode material is processed so that an electrode tab is not disposed in an impregnation region into which an electrolyte can be injected, and the electrode material is wound so that the electrode tab is arranged only in a specific region excluding the impregnation region, thereby winding the electrode material such that the electrolyte is injected through the impregnation region.