Seiko Epson Corporation

Kei Watanabe

Norio Tsuchiya

Akihiro Ikeda

Yuki Yajima

Tatsuya Kawakami

Eri Iiyama

Isao Eguchi

A printer includes a printing mechanism, a printer BLT communicator, a printer device communicator capable of communicating with a customer display, and a printer processor for performing printing based on print data in a case where the print data is received and transmits display data to the customer display in a case where the display data is received, in which the printer processor temporarily stops wireless communication by shifting an operation mode of the printer BLT communicator to a Sniff mode to transmit a communication request to the POS terminal device at a communication request interval in a case where a period during which the print data or the display data is not received exceeds a shift period, and changes the communication request interval depending on whether or not the customer display is connected.

Printing apparatus configured to implement a predetermined interval for communication requests

A printer including: a printhead; and a processor that controls the printhead. The processor, when data including print data of one transaction is received from an external device, acquires from the received data the print data and a first error detection code the external device calculated from the print data, calculates a second error detection code from the acquired printer, determines whether or not the first error detection code and the second error detection code match, and sends to the external device evaluation result data indicating the evaluation result. When the first error detection code and second error detection code match, the processor prints by the printhead based on the acquired print data; and when first error detection code and second error detection code do not match, discards the received data.

Printer and control method of a printer

A media processing device includes a reception unit that receives commands; a conveyance unit that conveys media; a reading unit that reads information from the media conveyed by the conveyance unit; a recording unit that records on the media conveyed by the conveyance unit; and an initialization process execution unit that, after the media processing device turns on or resets, enters a busy state in which the reception unit does not receive commands, executes a first initialization process that runs a process confirming media conveyance by the conveyance unit, and then cancels the busy state and runs a second initialization process that initializes the recording unit or the reading unit.

Media processing device and method of controlling a media processing device

A printer can print to paper with a narrow width while maintaining a print format with good legibility without changing the application program and printer driver installed on the host computer. The control method of a printer that prints based on print datasent from a host computerhas a step Sof extracting data attributes contained in the print dataand assigning the print datato data segment areas for each data attribute; a step of setting the data segment areas to specific printing areas based on the data attribute; an actual print data generating step (steps S, S, S, S, S) of converting the print dataassigned to the data segment areas to actual print data according to the data attributes; and a printing step Sof printing the actual print data in the printing areas.

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Saku, Japan

Kei Watanabe