A recording material feeding device includes a stacking portion, a driving source, a holding member, a torque limiter for limiting transmission of a driving torque from the driving source to the stacking portion in a case that the driving source rotates in a state in which the holding member holds the position of the stacking portion; a storing portion for storing information on a holding state of the holding member; and a controller for controlling the driving source to rotate at a rotational speed slower when the information is information indicating that the holding member holds the position of the stacking portion than when the information is information indicating that the holding member does not hold the position of the stacking portion.

A printer includes a recording head, a belt, a scale unit, a reading head, a gripping unit. The belt includes a first surface configured to support a medium and a second surface opposite to the first surface. The gripping unit includes a first abutting portion that comes into contact with the first surface, and a second abutting portion that comes into contact with the second surface. The gripping unit can be changed between a gripping state of moving along with the glue belt while gripping the glue belt, and a release state of being separated from the glue belt. When the gripping unit is in the release state, the second abutting portion is separated from the second surface in conjunction with the first abutting portion being separated from the first surface.

In one example, an elevator for a roll of print media includes rotatable shafts oriented parallel to one another and translatable supports to support a roll of print media. Each support is operatively connected to the shafts such that rotating the shafts in a first direction raises the supports and rotating the shafts in a second direction opposite the first direction lowers the supports.

A printer device includes: a recessed accommodation part accommodating a roll-shaped continuous paper; a pair of rack gears arranged in a staircase-like shape on a paper conveyance direction side of the continuous paper, and having tooth rows arranged in a first direction orthogonal to the paper conveyance direction so as to face each other; a pinion gear arranged between the pair of rack gears and fitting into the tooth rows of the pair of rack gears, and a pair of paper guides respectively provided at one end portion of an upper rack gear in the first direction and anther end portion of a lower rack gear in the first direction, and supporting side surfaces of the continuous paper accommodated in the accommodation part. The pair of paper guides perform an opening or closing movement in the first direction by the pair of rack gears and the pinion gear.

A printer device includes: a pair of rack gears arranged in a staircase-like shape on a paper conveyance direction side of a continuous paper accommodated in a recessed accommodation part that accommodates a roll-shaped continuous paper and having tooth rows arranged in a first direction orthogonal to the paper conveyance direction so as to face each other; a pinion gear fitted into the tooth rows; and a pair of paper guides that are respectively provided at a position of an upper rack gear that is closer to a center side in the first direction from one end portion in the first direction and a position of a lower rack gear that is closer to the center side in the first direction from another end portion in the first direction or the other end portion. The paper guide provided on the upper rack gear is mounted to an upper mounting part extending from a back surface of the upper rack gear opposite to the tooth row to the paper conveyance direction side.

A print device includes a supply unit, a print unit, a conveyer, a tensioner, a drive unit, a processor, a medium detector, and a memory. The tensioner is configured to apply tension to the medium. The memory stores computer-readable instructions that, when executed by the processor, instruct the processor to perform processes including correction processing, which is repeated a plurality of times, of controlling the drive unit and applying the tension to the medium by the tensioner during a back-and-forth conveyance operation of conveying the medium in the return direction after conveying the medium in the conveyance direction, and detection processing of detecting attributes of the medium, based on the detection result output from the medium detector, during one of the back-and-forth conveyance operations, of the plurality of back-and-forth conveyance operations.

A sheet feeding apparatus includes a sheet presence/absence detection sensor configured to detect presence or absence of a sheet on a stacking device, a sheet surface detection sensor configured to detect that a stacking tray is raised to enable a sheet to be fed, a separation cam, and a control unit. The control unit is configured to determine that the mounting state of a feeding holder to a holder support unit is defective when the sheet surface detection sensor detects that the sheet can be fed when the sheet presence/absence detection sensor detects absence of a sheet before sheet feeding processing by a pickup roller.

The printer has a closed state where the printing head portion and the damper portion are positioned on a position printable on the print mediums, and an open state where the printing head portion and the damper portion are positioned on a position separated from the print mediums. In a case of a transition from the closed state to the open state, the printing head portion and the damper portion behave in conjunction, and in a case of a transition from the open state to the closed state, the damper portion and the printing head portion independently behave.

The disclosure discloses a tape cartridge comprising a first tape roll, a second tape roll, a connecting part, and a pair of gripped parts. A first tape consumed by feed-out is wound around the first tape roll. The second tape roll winds a second tape around an axis extending along the first direction and provided on a downstream side of the first tape roll. The second tape is generated by a feeding of the first tape. The connecting part is provided so as to connect the first tape roll and the second tape roll. The pair of gripped parts extends along the second direction, each respectively provided on either side of the connecting part along the first direction. The gripped part comprises a slip preventing part configured to prevent slipping during gripping on an end of the gripped part in the one side along the second direction.

A medium feeding apparatus includes a roll motor which applies torque for rotating a roll body to the roll body, a storage portion which stores output measured value, which is measurement result of output value to the roll motor for rotating the roll body, and a roll control portion which corrects the output measured values stored in the storage portion to correction value in accordance with stop time of the roll motor, and controls the roll motor based on the corrected output measured values.