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US 9,542,133 B2Granted
Print control system and print control method
AssigneeSeiko Epson Corporation
InventorsShigeo Tajima, Koji Nishizawa, Keigo Mori
Life of this patent
Estimating the term…
Abstract
A print control system 1 has a control server 10 that transmits print data, and a printer 12 that communicates with the control server 10 through an asynchronous duplex communication path, receives print data sent by the control server 10 through the communication path, and prints based on the received data.
Claims20
A printer comprising:
- a print head configured to print on print media;
- a communication controller configured to establish an asynchronous duplex communication channel with a remote print control device, and to receive print data from the remote print control device as pushed data without sending a request to the print control device;
- and
- a print controller configured to control the print head based on the received print data;
- wherein the communication controller automatically initiates the establishing of the asynchronous duplex communication with the print control device by sending a message from the printer to the print control device in the absence of any user-input instruction from a user interface of the printer, or message from the print control device.
2 more elements
A printer control method comprising:
- the printer automatically initiating an asynchronous duplex communication channel between the printer and a remote print control device by sending a request for duplex communication to the remote print control device in the absence of any user-input instruction from a user interface of the printer or any instruction from the print control device;
- receiving print data from the print control device as pushed data without sending a request to the print control device through the asynchronous duplex communication channel;
- and
- printing based on the received print data.
1 more element
A print control system comprising:
- a print control device that sends print data;
- a printer remote from the print control device;
- and
- an asynchronous duplex communication channel between the print control device and the printer;
- wherein:
- the print control device is configured to push print data to the printer without receiving a request from the printer through the asynchronous duplex communication channel;
- and
- the printer is configured to;
- automatically initiate the asynchronous duplex communication channel by sending a message to the print control device in the absence of any user-input instruction from a user interface of the printer, or message from the print control device;
- receive the pushed print data sent by the print control device through the asynchronous duplex communication channel, and
- print based on the received pushed print data.
8 more elements
Dependencies are inferred from the claim text.