A tray is used in a printing apparatus that includes a conveying unit configured to convey the tray holding a printing medium, and a printing unit configured to perform printing onto a print surface of the printing medium held by the tray. The tray includes a placement surface on which a printing medium is to be placed, a pressing member that presses the printing medium placed on the placement surface towards a downstream side of an inserting direction of the tray with respect to the printing apparatus, and a regulating portion configured to regulate a movement of the printing medium by abutting the printing medium pressed by the pressing member.

In a printing unit, a detecting unit is made to pass over a hole formed at the center of an optical disk and to detect the position of the center of the hole, and an obtaining unit obtains the detected position of the center of the hole as the center of the optical disk. Then, a setting unit sets a print position for the optical disk based on the obtained position of the center of the optical disk.

A communication device includes a first holding unit which holds a disk-like first recording medium capable of storing information and a second holding unit which holds a second recording medium which is different from the first recording medium. The communication device further includes a request reception unit configured to receive a request for information indicating a recording medium which is usable by the communication device from a terminal device, and a transmission unit configured to transmit information indicating the first recording medium and information indicating the second recording medium held by the second holding unit to the terminal device when the request is received.

A printing apparatus includes a conveyance unit configured to convey a tray on which a printing medium is placed, a printing unit configured to perform printing on a print surface of a printing medium on the tray based on a print job, and a first detection unit configured to detect a relative position relationship between the tray and a printing medium placed on the tray. In addition, a control unit is configured to control the printing unit not to perform printing in a case where the first detection unit detects that the printing medium is not placed at an appropriate position, and a selecting unit is configured to select whether to continue printing irrespective of results of the detection by the first detection unit.

An ink-jet recording apparatus is provided, including a first transport section which transports a recording medium; a recording section which is formed with a plurality of nozzles and which records an image on the recording medium by discharging ink droplets from the nozzles; an interference member which is provided at a position separated from the recording section; and a control unit which controls the recording section so that only a part of the nozzles is used for a certain area of the recording medium.

A publisher configured to record data on a medium by a first media drive and a second media drive and including a publisher controller and a publisher storage, the publisher controller being configured to detect a type of a medium on which data is recordable by the first media drive and detect a type of a medium on which data is recordable by the second media drive, the type of the medium on which data is recordable by the first media drive and the second media drive being defined as a recording target type, the type of a medium on which data is recordable by only any one of the first media drive and the second media drive being defined as a non-recording target type, and the publisher being configured to store target type information representing the recording target type and the non-recording target type.

An ink-jet recording apparatus is provided, including a first transport section which transports a recording medium; a recording section which is formed with a plurality of nozzles and which records an image on the recording medium by discharging ink droplets from the nozzles; an interference member which is provided at a position separated from the recording section; and a control unit which controls the recording section so that only a part of the nozzles is used for a certain area of the recording medium.

A communication device includes a first holding unit which holds a disk-like first recording medium capable of storing information and a second holding unit which holds a second recording medium which is different from the first recording medium. The communication device further includes a request reception unit configured to receive a request for information indicating a recording medium which is usable by the communication device from a terminal device, and a transmission unit configured to transmit information indicating the first recording medium and information indicating the second recording medium held by the second holding unit to the terminal device when the request is received.

A communication device includes a first holding unit which holds a disk-like first recording medium capable of storing information and a second holding unit which holds a second recording medium which is different from the first recording medium. The communication device further includes a request reception unit configured to receive a request for information indicating a recording medium which is usable by the communication device from a terminal device, and a transmission unit configured to transmit information indicating the first recording medium and information indicating the second recording medium held by the second holding unit to the terminal device when the request is received.

A tray for a printing apparatus including a conveying unit that conveys the tray holding a printing medium, and a printing unit that performs printing onto a print surface of the printing medium on the tray includes: a placement surface for placing thereon an adapter that holds the printing medium; a pressing member disposed on the upstream side of the adapter in the inserting direction of the tray with respect to the printing apparatus to press the adapter placed on the placement surface toward a downstream side of the inserting direction; a regulating portion configured to regulate a movement of the adapter by abutting the adapter pressed by the pressing member; and an opening into which a protrusion of the adapter is insertable.