An information processing device is communicably connected to a tape printing device that performs printing on a tape. The information processing device includes an acquiring section that acquires a remaining tape length that is a length of an unprinted portion of the tape; an accepting section that accepts an operation of editing print data; a unit label length calculating section that calculates a unit label length that is a length per label to be created by printing, on the tape, the print data being edited; a printable sheet number calculating section that calculates, based on the remaining tape length and the unit label length, the number of printable sheets that indicates how many labels with the unit label length can be created using the tape with the remaining tape length; and a sheet number notifying section that notifies a user of the calculated number of printable sheets.

A printer device includes a main housing including a print media cassette receiving slot. A first drive assembly of the main housing includes a motor operatively coupled to rotate a drive gear. A print media cassette is removably inserted into the print media cassette receiving slot, and includes a second drive assembly having a driven gear that is engaged with the drive gear. One of the drive gear or the driven gear is mounted for movement such that at least one of (i) a position of an axis of the drive gear is movable relative to the main housing or (ii) a position of an axis of the driven gear is movable relative to the printer cassette. A retaining mechanism includes a portion movable into a gear train coupling position in which the drive gear and the driven gear are held in driving contact with each other.

A printing device includes a printing apparatus that includes a transport unit including a roller pair that nips and transports a medium, a printing unit that prints on the medium and a first sensor that detects the medium or a mark at a position downstream of the roller pair. The printing device also includes a first motor capable of driving the roller pair to a non-nipping state and to a nipping state, and a controller that controls the transport unit and the first motor so as to perform an assistance operation to assist setting of the medium. The assistance operation performed by the controller. When the first sensor detects the medium or the mark, the controller causes the medium to be nipped by the roller pair, and a skew correction operation in which the medium is transported and reverse transported is performed.

A printing device includes a printing apparatus that includes a transport unit including a roller pair that nips and transports a medium, a printing unit that prints on the medium and a first sensor that detects the medium or a mark at a position downstream of the roller pair. The printing device also includes a first motor capable of driving the roller pair to a non-nipping state and to a nipping state, and a controller that controls the transport unit and the first motor so as to perform an assistance operation to assist setting of the medium. The assistance operation performed by the controller. When the first sensor detects the medium or the mark, the controller causes the medium to be nipped by the roller pair, and a skew correction operation in which the medium is transported and reverse transported is performed.

An image reading apparatus includes a reading unit that reads an image of paper by a relative movement to the paper, an in-paper region that is a region in which the image of the paper is read by the reading unit, and an image that is provided in an out-of-paper region that is a region outside the paper and is used for diagnosing the image of the paper.

An image reading apparatus includes a reading unit that reads an image of paper by a relative movement to the paper, an in-paper region that is a region in which the image of the paper is read by the reading unit, and an image that is provided in an out-of-paper region that is a region outside the paper and is used for diagnosing the image of the paper.

A printing device includes a printing apparatus that includes a transport unit including a roller pair that nips and transports a medium, a printing unit that prints on the medium and a first sensor that detects the medium or a mark at a position downstream of the roller pair. The printing device also includes a first motor capable of driving the roller pair to a non-nipping state and to a nipping state, and a controller that controls the transport unit and the first motor so as to perform an assistance operation to assist setting of the medium. The assistance operation performed by the controller. When the first sensor detects the medium or the mark, the controller causes the medium to be nipped by the roller pair, and a skew correction operation in which the medium is transported and reverse transported is performed.

A printing device includes a printing apparatus that includes a transport unit including a roller pair that nips and transports a medium, a printing unit that prints on the medium and a first sensor that detects the medium or a mark at a position downstream of the roller pair. The printing device also includes a first motor capable of driving the roller pair to a non-nipping state and to a nipping state, and a controller that controls the transport unit and the first motor so as to perform an assistance operation to assist setting of the medium. The assistance operation performed by the controller. When the first sensor detects the medium or the mark, the controller causes the medium to be nipped by the roller pair, and a skew correction operation in which the medium is transported and reverse transported is performed.

An image forming apparatus includes a transmission-type photosensor including a light-emitting part and a light-receiving part, disposed on opposite sides of a media conveyance path; a sensor retainer to retain the light-emitting part and the light-receiving part; a suspended needle indicator including one end portion freely rotatably disposed on the sensor retainer at a position higher than the photosensor, and an indicator disposed on another end thereof; and an angle viewer with scale marks that mark an angle of an optical axis of the photosensor from a vertical direction. The photosensor is disposed with the optical axis thereof is angled within a predetermined adjusted angle relative to the media conveyance path.

An image forming apparatus includes a transmission-type photosensor including a light-emitting part and a light-receiving part, disposed on opposite sides of a media conveyance path; a sensor retainer to retain the light-emitting part and the light-receiving part; a suspended needle indicator including one end portion freely rotatably disposed on the sensor retainer at a position higher than the photosensor, and an indicator disposed on another end thereof; and an angle viewer with scale marks that mark an angle of an optical axis of the photosensor from a vertical direction. The photosensor is disposed with the optical axis thereof is angled within a predetermined adjusted angle relative to the media conveyance path.