A conveyance apparatus includes a bearing rotator, an entrance rotator, an exit rotator, a first driver circuit, a downstream conveyor, a second driver circuit, and a recording medium detector. The entrance rotator receives a recording medium at a first position. The downstream conveyor receives the medium at a second position. As a process of removing the medium, the first driver circuit starts rotation operation after the second driver circuit starts driving the downstream conveyor and rotates the rotators for not less than a period of time for the medium to be conveyed from the first position to the second position. The second driver circuit continues driving the downstream conveyor for not less than a period of time for the medium to be conveyed from the second position to a position at which the medium is detected after the rotation operation of the first driver circuit is stopped.

A printing apparatus includes a rotary shaft configured to rotate while holding a roll body of a printing medium, a first motor configured to rotate the rotary shaft, a roller pair configured to transport the printing medium downstream by rotating in a state of pinching the printing medium, a second motor configured to rotate the roller pair, a first sensor configured to detect a tip end or a feature of the printing medium, a second sensor configured to detect the tip end or feature of the printing medium, and an outer diameter calculating unit configured to calculate an outer diameter of the roll body based on detection by the first sensor and detection by the second sensor, wherein the outer diameter calculating unit calculates an outer diameter of the roll body before the tip end of the printing medium is pinched by the roller pair.

Provided is a printing apparatus including: a guide unit configured to guide movement, in a first direction, of the printing apparatus held and moved by a user; a printing unit configured to print an image onto a print medium with the movement in the first direction; a second guide unit configured to guide movement of the printing apparatus in a second direction crossing the first direction; a detection unit configured to detect a relative moving amount between the printing apparatus and the print medium; and a control unit configured to cause a notification unit to make a predetermined notification according to a first distance in the first direction between the printing unit and the detection unit and a position at which an operation of printing a single line by the printing unit is completed.

A recording apparatus including a recording head that performs recording, a feed roller that feeds out a set medium, a transport driving roller that transports the medium, which is fed out by the feed roller, towards an opposing position that opposes the recording head, and an auxiliary roller provided between the feed roller and the transport driving roller, the auxiliary roller assisting transportation of the medium. When the apparatus is seen from a side of the apparatus, the auxiliary roller overlaps the feed roller in a height direction of the apparatus.

Provided is a manually scannedprinting apparatus capable of suppressing deterioration in image quality. To provide this, a support portion of a guide roller and a support portion of a downstream position detection sensor are configured to be displaceable relative to each other in a direction substantially orthogonal to the printing surface of a print medium to be printed.

A sheet feeding device includes a support that detachably supports a roll, a rotation driver that rotates a spool, a guide including a facing portion and a guide portion, a support shaft that swingably supports the guide, a biasing member that presses the guide, a sensor that retractably projects from the facing portion and outputs a detection signal, a roller that contacts an outer circumferential surface of the roll, and circuitry that controls the rotation driver. The circuitry determines a passing time based on a first change rate and a second change rate, and causes the rotation driver to rotate the spool by a predetermined angle in a winding direction, from the passing time, to position a leading end of a continuous sheet at a feeding start position, and rotates the spool in the feeding direction to feed the continuous sheet from the feeding start position along the guide portion.

Provided is a printing apparatus including: a holding unit configured to be held by a user to move the printing apparatus; a printing unit configured to print an image onto a print medium according to a movement of the printing apparatus; a guide unit configured to guide the movement of the printing apparatus; a first detection unit configured to detect a relative moving amount between the printing apparatus and the print medium; a second detection unit provided at a position different from a position of the first detection unit; and a displacement unit configured to displace the first detection unit from a state where the first detection unit and the second detection unit are both in contact with the print medium into a state where the first detection unit is separated from the print medium.

A liquid ejection apparatus is provided that includes a plurality of liquid ejection head units that are configured to eject liquid onto a conveyed object being conveyed; a detection unit that is provided with respect to each liquid ejection head unit of the plurality of liquid ejection head units and is configured to output a detection result indicating at least one of a position, a moving speed, and an amount of movement of the conveyed object with respect to a conveying direction of the conveyed object; and a control unit configured to control each liquid ejection head unit among the plurality of liquid ejection head units to eject liquid at a timing based on a plurality of the detection results of a plurality of the detection units.

A conveyance device includes a tray on an upper surface of the conveyance device and an upper guide below the tray. The tray receives a sheet, and the upper guide defines a conveyance path in which the sheet is conveyed. The upper guide is movable together with the tray to open the conveyance path.

A recording device includes a recording head, a transport roller set, and a controller that controls a driving source that drives a transport driving roller. The controller judges whether a rear end that is an upstream end of a medium in a transport direction crosses a kicking region set in a range present downstream of a nipping position of the transport roller set in a transport direction. When the controller judges that the rear end does not cross the kicking region, the controller adjusts a feeding amount for at least one of a plurality of transport operations to be performed until the rear end reaches the kicking region in such a manner that the rear end of the medium crosses the kicking region.