A communication system performs wireless communication using electromagnetic field coupling between a transmission coupler and a reception coupler and moves at least one of the transmission coupler and the reception coupler so as to change the position in a predetermined direction of the reception coupler relative to the transmission coupler. In the communication system, the greater the distance between an overlap portion where the transmission coupler and the reception coupler overlap as viewed from a vertical direction to the predetermined direction and an input end of the transmission coupler is, the higher the degree of coupling between the transmission coupler and the reception coupler becomes.

A server, which is capable of communicating with a printer or printers, each performing radio frequency identification (RFID) communication with a RFID tag, contains: a record unit configured to record, in a memory device, printer identification information for identifying a printer, tag identification information for identifying a RFID tag, and communication parameters with which the printer performs RFID communication, in an associated manner; a first obtaining unit configured to obtain, from a printer, printer identification information and tag identification information read by the printer; an identifying unit configured to identify communication parameters associated with the printer identification information and the tag identification information obtained by the first obtaining unit; and a first transmission unit configured to transmit the communication parameters identified by the identifying unit, to the printer.

A print consumable may include a rotatable core, a roll of dispensable print substrate, and a radio-frequency identification (RFID) tag. The roll of the dispensable print substrate may be dispensably secured to the core. The RFID tag may be secured to the core and configured to rotate about a core axis. The RFID tag includes an RFID antenna coupled to an RFID chip. The RFID chip may include a print counter, a stock-keeping unit (SKU) code, and a consumable authentication code. A print system may include a housing, a holder to hold the print consumable, a print head, a transceiver, a trace antenna for reading an RFID tag of the print consumable, and a controller. The controller may be configured to receive a signal from the transceiver indicative of one or more of the print counter, the SKU code, and the consumable authentication code received from the RFID antenna.

Certain methods and systems for configuring a print device are described. In one example, a system comprises a print control interface that is arranged to receive a command from a remote client interface. The command may be generated based on a request to configure the print device that is received at the remote client interface from a printing application, the request being to implement a custom media profile for the print medium. The print control interface is operable to generate an operating profile for the print device based on the received request to print on the print medium. This allows printing on custom print media.

A print consumable may include a rotatable core, a roll of dispensable print substrate, and a radio-frequency identification (RFID) tag. The roll of the dispensable print substrate may be dispensably secured to the core. The RFID tag may be secured to the core and configured to rotate about a core axis. The RFID tag includes an RFID antenna coupled to an RFID chip. The RFID chip may include a print counter, a stock-keeping unit (SKU) code, and a consumable authentication code. A print system may include a housing, a holder to hold the print consumable, a print head, a transceiver, a trace antenna for reading an RFID tag of the print consumable, and a controller. The controller may be configured to receive a signal from the transceiver indicative of one or more of the print counter, the SKU code, and the consumable authentication code received from the RFID antenna.

Provided is an ink jet system configured to communicate with a server, the ink jet system including: a first head unit that ejects a first type of ink onto a recording medium; a second head unit that ejects a second type of ink onto the recording medium; an acquisition section that acquires one or both of first information regarding the first head unit and the second head unit, and second information regarding the first type of ink and the second type of ink; a transmitter that transmits one or both of the first information and the second information to the server; and a receiver that receives, from the server, reference color information for forming a reference color on the recording medium, which is generated based on one or both of the first information and the second information.

According to one embodiment, a printing apparatus includes a shaft, an antenna, and a printing section. The shaft can be inserted into a cylindrical core of an ink ribbon roll wound around the cylindrical core. The shaft permits the ink ribbon roll to rotate about the shaft. The ink ribbon roll has a wireless tag for identification purposes or the like. The antenna is provided on the shaft for data communication with the wireless tag of the ink ribbon roll. The printing section performs printing on a medium using the ink ribbon drawn out from the ink ribbon roll.

The disclosure discloses a portable printer including a feeder, a printing head, a controller, and a command transmission unit. The feeder is configured to feed a print-receiving medium. The printing head is configured to perform print on the print-receiving medium fed by the feeder. The controller is configured to control the feeder and the printing head in cooperation with each other to produce a first printed matter by using desired first print data. The command transmission unit is configured to transmit through wireless communication to another printer other than the portable printer a production instruction for a second printed matter having print contents equivalent to the first printed matter at a predetermined timing after start of production of the first printed matter.

A printing apparatus includes: a mount portion that removably supports a cassette configured to contain a printing medium and including a cassette storage; a printing device configured to draw the printing medium from the cassette and perform printing on the printing medium; and a controller. The controller performs: when the printing apparatus is in a required state in which medium information stored in the cassette storage of the cassette mounted on the mount portion is required, executing obtaining-communication for obtaining the medium information from the cassette, each time when a first cycle has elapsed; and when the printing apparatus is in a non-required state in which the medium information stored in the cassette storage of the cassette mounted on the mount portion is not required, inhibiting execution of the obtaining-communication or executing the obtaining-communication each time when a second cycle greater than the first cycle has elapsed.

A printing device having a wireless-network module is disclosed. The printing device includes a housing having a front side including an opening and a repositionable cover over the opening. A main controller is disposed within the housing. A print engine is also disposed within the housing and operably coupled to the main controller. The wireless-network module is operably coupled to the main controller and spaced-apart from the main controller in the housing. The wireless-network module disposed between the print engine and the front side and accessible from the opening.