Printing system for carrying out energy conservation operation
First Claim
1. A printer comprising:
- a receiver that receives data from a first device over a network;
a controller that alternates a state of the printer between a first state in which the printer is able to respond to data received by the receiver and a second state in which the printer is not able to respond to the data, and that outputs a substitute response request signal to a second device over the network so that the second device may respond to the data from the first device when the controller switches the state from the first state to the second state.
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Accused Products
Abstract
A printer 100 sends status information, ID information and the like to a network device 200 before entering an energy conservation mode in which it is unable to communicate with external devices, so that the network device 200 will respond to a status information request on its behalf. Where a PC 300 requests status information from the printer 100, the network device 200 in which substitute response setting was put in effect responds with the printer 100 status information on behalf of the printer 100. By receiving the status response from the network device 200, the PC 300 can verify that the printer 100 is connected to the network 400. The PC 300 can also send a release order that releases the printer 100 from the energy conservation state so that it can initiate printing.
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Citations
25 Claims
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1. A printer comprising:
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a receiver that receives data from a first device over a network;
a controller that alternates a state of the printer between a first state in which the printer is able to respond to data received by the receiver and a second state in which the printer is not able to respond to the data, and that outputs a substitute response request signal to a second device over the network so that the second device may respond to the data from the first device when the controller switches the state from the first state to the second state. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A data processing apparatus comprising:
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a receiver that receives from a printer over a network data that includes a substitute response request signal that orders a substitute response to a request for status information sent to the printer, printer identification information and printer status information; and
a controller that, when the status information of the printer is requested by an external device, sends to the external device, based on the data, a response containing status information instead of the printer. - View Dependent Claims (8)
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9. A data processing apparatus comprising:
a controller that, based on the status information received from the printer over a network, determines that the printer is in a state in which the printer is not able respond, and that outputs to the printer a release request signal that cancels the state and enables the printer to respond.
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10. A printing system comprising a printer and a data processing apparatus,
wherein the printer including a receiver that receives data from an external device over a network; - a controller that switches a state of the printer between a first state in which the printer is able to respond to the data received by the receiver and a second state in which the printer is not able to respond to the data, and that outputs a substitute response request signal to the data processing apparatus over the network so that the data processing apparatus may respond to the data when the controller switches the state from the first state to the second state; and
wherein the data processor including a receiver that receives from the printer over the network data that includes a substitute response request signal, printer identification information and printer status information; and
a controller that, when the status information of the printer is requested by the external device, sends to the external device, based on the data, a substitute response containing the printer status information instead of the printer.
- a controller that switches a state of the printer between a first state in which the printer is able to respond to the data received by the receiver and a second state in which the printer is not able to respond to the data, and that outputs a substitute response request signal to the data processing apparatus over the network so that the data processing apparatus may respond to the data when the controller switches the state from the first state to the second state; and
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11. A printer control method comprising following steps of:
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switching a state of the printer between a first state in which the printer is able to respond to data received from an external device over a network and a second state in which the printer is not able to respond to the data from the external device; and
outputting a substitute response request signal to a data processing apparatus over the network so that the data processing apparatus may responds to the data from the external device, when the state of the printer is switched from the first state to the second state. - View Dependent Claims (15, 16, 17, 18, 19, 23)
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12. A data processing method of a data processing apparatus, comprising following steps of:
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receiving data, from a printer over a network, that includes a substitute response request signal that orders a substitute response to a request for status information sent to the printer, printer identification information and printer status information; and
sending a substitute response, when the status information of the printer is requested by a device over the network, to the device based on the data instead of the printer, and wherein the substitute response containing the status information.
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13. A data processor processing method of a data processing apparatus, comprising following steps of:
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determining, based on status information received from a printer over a network, that the printer is in a state in which the printer is disabled from responding; and
outputting to the printer a release request signal that cancels the state of the printer.
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14. A software program to cause a computer of a printer to execute following steps of:
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receiving data from a first device over a network;
switching a state of the printer between a first state in which the printer is able to respond to data received from the first device and a second state in which the printer is not able to respond to the data; and
outputting a substitute response request signal to a second device over the network so that the second device may respond to the data when the state of the printer is switched from the first state to the second state.
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20. A data processing software program to cause a computer to execute following steps of:
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receiving from a printer over a network data that includes a substitute response request signal that orders the computer to make a substitute response to a request for status information to the printer, printer identification information and printer status information; and
sending a substitute response, when the status information of the printer is requested by a device, to the device based on the data, and the substitute response containing the printer status information instead of the printer. - View Dependent Claims (21, 24)
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22. A data processing software program to cause a computer to execute following steps of:
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determining, based on status information received from a printer over a network, that the printer is in a state in which the printer is disabled from responding; and
outputting to the printer a release request signal that cancels the state when the printer is in the state. - View Dependent Claims (25)
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Specification