A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.

A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.

A printing apparatus includes: a main body; a cover; a pair of supporters including a movable supporter; a first urging member configured to urge the movable supporter in an approach direction; an engaging member movable between a separated position and an engaged position; and a second urging member configured to urge the engaging member toward the engaged position. When the cover is in an open state, the engaging member is located at the engaged position by an urging force of the second urging member so as to inhibit movement of the movable supporter in the approach direction. When the cover is in a closed state, the engaging member is located at the separated position against the urging force of the second urging member by contact of the cover with the engaging member so as not to inhibit the movement of the movable supporter in the approach direction.

In an example, a media guide assembly includes a support structure, a first media guide, and a second media guide moveably coupled to the support structure. In that example, the second media guide includes a surface that generates a wedge effect to move the second media guide to a level when contacted by a force. In another example, an example print apparatus includes a support structure, a first media guide, and a second media guide substantially parallel to the first media guide with respect to a media advance direction. In that example, the second media guide includes a position control mechanism to place force on a media path surface of the second media guide towards a rest position where the media path surface of the second media guide is substantially parallel to the media path surface of the first media guide.

A printer according to one embodiment includes: a container configured to store a roll, the roll being a belt-like shaped print medium that is wound; a limiter in the container, the limiter having an abutting face to limit movement of the roll stored in the container and the belt-like shaped print medium extracted from the roll in width directions; and a damper disposed at a position opposed to a surface of the print medium extracted from the roll and the abutting face, the damper absorbing fluctuations in tension of the print medium.

A control device using, as a learning target, a transporting apparatus, a rotation control section which controls at least one of a rotation speed of a first roller and a rotation speed of a second roller, and a position detection section which detects a position of the transport target matter, the control device including a state variable acquisition section which acquires a state variable and a detection result of the position detection section, the state variable being based on information of a state of the transport target matter and information of an environment to which the transport target matter is exposed, and a learning section which learns a control expression for calculating a control value of the rotation control section based on a dataset containing the state variable acquired by the state variable acquisition section and the detection result of the position detection section.

A simple configuration enables easily changing the open or closed state of multiple suction holes while assuring suction. A shutter drum rotates centered on an axis of rotation extending on a transverse axis, and a suction fan that produces negative pressure inside the shutter drum. When one suction hole on the transverse axis is a first suction hole, and another suction hole adjacent on the transverse axis to the first suction hole is a second suction hole, a first communication path including a suction chamber and through-hole communicates with the first suction hole, and a second communication path including a suction chamber and through-hole communicates with the second suction hole. The shutter drum functions as a shutter that, by rotating, selectively changes the open or closed state of the first and second communication paths.

A system for treatment of thread includes a weft thread printer having an intake positioned to receive a weft thread from a source, as well as an encoder that is configured to detect a length of the weft thread as the weft thread moves through the weft thread printer along a travel path. The system also includes a printhead positioned to apply coatings of a plurality of colors to the weft thread and yield a treated weft thread, as well as an outlet positioned to pass the treated weft thread to a loom.

A printing apparatus including a transport guiding portion with high manufacturing yield, is provided. A printing apparatus includes a printing portion which is able to print on a medium, a transport portion which transports the medium, and a transport guiding portion on which a transport surface on which the medium is transported is formed and which has a plurality of bent portions, in which the transport guiding portion is provided with a first guiding member which has a bent portion and forms the transport surface on a transport direction upstream side of the medium and a second guiding member which has a bent portion and forms the transport surface on a transport direction downstream side of the medium.

A printing apparatus includes a drying unit, and has, a first mode in which a temperature of the drying unit is decreased by performing a control of electric connection to a heater of the drying unit or a temperature control of the heater after starting the maintenance work, and the temperature of the drying unit is increased by performing the control of electric connection to the heater or the temperature control of the heater after the maintenance work, and a second mode in which the temperature of the drying unit is decreased by performing the control of electric connection to the heater or the temperature control of the heater after the starting of the maintenance work, and the temperature of the drying unit is increased by performing the control of electric connection to the heater or the temperature control of the heater during the maintenance work.