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US 9,804,809 B2Granted
Print control system
AssigneeSeiko Epson Corporation
InventorsShigeo Tajima, Koji Nishizawa, Yuichi Sugiyama
Life of this patent
Estimating the term…
Abstract
A print control system 1 includes a control server 10 that opens a communication path for asynchronous duplex communication, generates print data, and outputs the generated print data by the opened communication path; and a printer 12 that opens a communication path, receives the print data by the opened communication path, and prints based on the received print data.
Claims4
A printing device comprising:
- a communication control unit configured to establish an asynchronous duplex communication channel with a print control device, and to receive print data pushed by the print control device through the asynchronous duplex communication channel without receiving a request from the printing device;
- and
- a print mechanism configured to print on print media based on the received print data;
- wherein the asynchronous duplex communication channel is established by a message from the printing device to the print control device.
1 more element
Dependencies are inferred from the claim text.