Image processing system, image processing apparatus, and control method and program therefor

An image processing apparatus capable of transmitting/receiving image data, comprising:

• a history storing unit adapted to store a transmission history of image data;
• an input unit adapted to specify transmitted image data in the transmission history stored in the history storing unit and input instructions of retransmitting the specified image data;
• a determination requesting unit adapted to request determination of whether the transmitted image data specified by the input unit has been output from an image processing apparatus on a receiver side;
• a determining unit adapted to determine whether the specified received image data has been output in response to the determination request from an image processing apparatus on a transmitter side;
• a responding unit adapted to transmit a determination result generated in the determining unit to the image processing apparatus on the transmitter side;
• a retransmitting unit adapted to retransmit the transmitted image data if it is determined that the transmitted image data specified by the input unit has not been output from the image processing apparatus on the receiver side;
• and
• a replacing unit adapted to replace the previously received image data with the retransmitted image data after receiving the retransmitted image data.

An image processing apparatus capable of transmitting image data, comprising:

• a history storing unit adapted to store a transmission history of image data;
• an input unit adapted to input instructions of retransmitting transmitted image data selected from the transmission history stored in the history storing unit;
• a determination requesting unit adapted to request determination of whether the transmitted image data specified by the input unit has been output from an image processing apparatus on a receiver side;
• and
• a retransmitting unit adapted to retransmit the transmitted image data based on the instructions of retransmission if it is determined that the transmitted image data specified by the input unit has not been output from the image processing apparatus on the receiver side.

An image processing apparatus capable of receiving image data, comprising:

• a receiving unit adapted to receive image data;
• an output unit adapted to output the image data received by the receiving unit;
• a determination request receiving unit adapted to receive a request for determining whether the received image data has been output from another image processing apparatus;
• a determining unit adapted to determine whether the specified received image data has been output in response to the received determination request;
• a responding unit adapted to transmit a determination result generated in the determining unit to the another image processing apparatus;
• and
• a replacing unit adapted to replace the received image data with retransmitted image data after the receiving unit receives the retransmitted image data.

A control method for an image processing apparatus capable of transmitting image data, the control method comprising:

• a history storing step of storing a transmission history of image data;
• an input step of specifying transmitted image data in the transmission history stored in the history storing step and inputting instructions of retransmitting the specified image data;
• a determination requesting step of requesting determination of whether the transmitted image data specified in the input step has been output from an image processing apparatus on a receiver side;
• and
• a retransmitting step of retransmitting the transmitted image data if it is determined that the transmitted image data specified in the input step has not been output from the image processing apparatus on the receiver side.

A control method for an image processing apparatus capable of receiving image data, the control method comprising:

• a receiving step of receiving image data;
• a determination request receiving step of receiving a request for determining whether the received image data has been output from another image processing apparatus;
• a determining step of determining whether the specified received image data has been output in response to the received determination request;
• a responding step of transmitting a determination result generated in the determining step to the another image processing apparatus;
• and
• a replacing step of replacing the received image data with retransmitted image data after the receiving step receives the retransmitted image data.

An image processing system including at least first and second image processing apparatuses for transmitting/receiving image data, the image processing system comprising:

• the first image processing apparatus on a transmitter side, comprising:
• a destination specifying unit adapted to specify the second image processing apparatus on a receiver side;
• a history requesting unit adapted to request a reception history of the receiver side specified by the destination specifying unit;
• an input unit adapted to specify received image data in the reception history transmitted from the second image processing apparatus and input instructions of retransmitting the specified image data;
• a determination requesting unit adapted to request determination of whether the image data specified by the input unit has been output from the second image processing apparatus;
• and
• a retransmitting unit adapted to retransmit the image data if it is determined that the image data specified by the input unit has not been output from the second image processing apparatus, and
• the second image processing apparatus on the receiver side, comprising:
• a history storing unit adapted to store the reception history of image data;
• a history transmitting unit adapted to transmit the reception history stored in the history storing unit in response to a request from the first image processing apparatus;
• a responding unit adapted to respond to the image processing apparatus on the transmitter side after determining whether the previously received image data has been output in response to the request from the first image processing apparatus;
• and
• a replacing unit adapted to replace the previously received image data with the retransmitted image data after receiving the retransmitted image data.

An image processing apparatus capable of transmitting/receiving image data, comprising:

• a history storing unit adapted to store a reception history of image data;
• a destination specifying unit adapted to specify an image processing apparatus on a receiver side;
• a history requesting unit adapted to request the reception history to the image processing apparatus on the receiver side specified by the destination specifying unit;
• a history transmitting unit adapted to transmit the reception history stored in the history storing unit in response to the request from an image processing apparatus on a transmitter side;
• an input unit adapted to specify received image data in the reception history transmitted from the image processing apparatus on the receiver side and input instructions of retransmitting the specified image data;
• a determination requesting unit adapted to request determination of whether the image data specified by the input unit has been output from the image processing apparatus on the receiver side;
• a responding unit adapted to respond to the image processing apparatus on the transmitter side after determining whether the previously received image data has been output in response to the request from the image processing apparatus on the transmitter side;
• a retransmitting unit adapted to retransmit the image data if it is determined that the image data specified by the input unit has not been output from the image processing apparatus on the receiver side, and
• a replacing unit adapted to replace the previously received image data with the retransmitted image data after receiving the retransmitted image data.

An image processing apparatus capable of transmitting image data, comprising:

• a destination specifying unit adapted to specify an image processing apparatus on a receiver side;
• a history requesting unit adapted to request a reception history of the receiver side specified by the destination specifying unit;
• an input unit adapted to specify received image data in the reception history transmitted from the image processing apparatus on the receiver side and input instructions of retransmitting the specified image data;
• a determination requesting unit adapted to request determination of whether the image data specified by the input unit has been output from the image processing apparatus on the receiver side;
• and
• a retransmitting unit adapted to retransmit the image data if it is determined that the image data specified by the input unit has not been output from the image processing apparatus on the receiver side.

An image processing apparatus capable of receiving image data, comprising:

• a receiving unit adapted to receive image data;
• a history storing unit adapted to store a reception history of the image data;
• an output unit adapted to output the image data received by the receiving unit;
• a history transmitting unit adapted to transmit the reception history stored in the history storing unit in response to a request from an image processing apparatus on a transmitter side;
• a determination request receiving unit adapted to receive a request for determining whether the received image data has been output from another image processing apparatus;
• a responding unit adapted to respond to the image processing apparatus on the transmitter side after determining whether the previously received image data has been output in response to the received determination request;
• and
• a replacing unit adapted to replace the previously received image data with retransmitted image data after receiving the retransmitted image data.

A control method for an image processing apparatus capable of transmitting image data, the control method comprising:

• a destination specifying step of specifying an image processing apparatus on a receiver side;
• a history requesting step of requesting a reception history of the receiver side specified in the destination specifying step;
• an input step of specifying received image data in the reception history transmitted from the image processing apparatus on the receiver side and inputting instructions of retransmitting the specified image data;
• a determination requesting step of requesting determination of whether the image data specified in the input step has been output from the image processing apparatus on the receiver side;
• and
• a retransmitting step of retransmitting the image data if it is determined that the image data specified in the input step has not been output from the image processing apparatus on the receiver side.

A control method for an image processing apparatus capable of receiving image data, the control method comprising:

• a receiving step of receiving image data;
• a history storing step of storing a reception history of the image data;
• an output step of outputting the image data received in the receiving step;
• a history transmitting step of transmitting the reception history stored in the history storing step in response to a request from an image processing apparatus on a transmitter side;
• a determination request receiving step of receiving a request for determining whether the received image data has been output from another image processing apparatus;
• a responding step of responding to the image processing apparatus on the transmitter side after determining whether the previously received image data has been output in response to the received determination request;
• and
• a replacing step of replacing the previously received image data with retransmitted image data after receiving the retransmitted image data.