Printing data and picture data transferring method

A printing method for performing printing using printing data from a printing control device, comprising:

• a step of outputting a response packet responsive to a command packet, conforming to the IEEE (The Institute of Electrical and Electronics Engineers)1394 standard, input from said printing control device;
• a step of receiving from said printing control device said printing control data comprehended in a packet conforming to said IEEE 1394 standard;
• a step of managing control to output to said printing control device the information pertinent to said printing data, as received prior to occurrence of bus resetting, in case such bus resetting occurs with respect to said printing control device as said printing data is input;
• and
• a step of performing the printing using the input printing data.

A printing control device comprising:

• picture processing means for processing picture signals output from outside to generate printing data;
• input/output means for comprehending printing data generated by said picture processing means in a packet conforming to the IEEE (The Institute of Electrical and Electronics Engineers)1394 standard, and for outputting the picture data comprehended in said packet to a printing device;
• and
• control means for requesting said printing device to transmit the information pertinent to said printing data, output by said input/output means before occurrence of bus resetting between the input/output means and the printing control device when such bus resetting occurs during outputting the printing data by said input/output means, said control means controlling said input/output means to perform the processing of re-outputting the printing data based on the information output from said printing device so as to be input by said input/output means.

A printing control method for processing picture signals input from outside to generate printing data, comprising:

• a step of comprehending the printing data generated on processing said picture signals in a packet conforming to the IEEE (The Institute of Electrical and Electronics Engineers)1394 standard to output the printing data comprehended in said packet to a printing device;
• a step of requesting said printing device to transmit the information pertinent to said printing data, output before occurrence of bus resetting with respect to the printing control device when such bus resetting occurs during outputting the printing data;
• and
• a step of managing control to perform the processing of re-outputting the printing data, based on the information pertinent to said printing data output from said printing device.

A printing system comprising:

• a printing control device having picture processing means for processing picture signals output from outside to generate printing data, first input/output means for comprehending printing data generated by said picture processing means in a packet conforming to the IEEE (The Institute of Electrical and Electronics Engineers)1394 standard, and for outputting the picture data comprehended in said packet to a printing device and control means for controlling said first input/output means;
• and
• a printing device having printing means for controlling said first input/output means and second input/output means for receiving the printing data from said printing control device and for outputting a response packet responsive to a command packet from said printing control device;
• said first input/output means requesting said printing device to transmit the information output before occurrence of bus resetting between the input/output means and the printing control device when such bus resetting occurs during transmission of the printing data from the first input/output means to second input/output means, said second input/output means outputting the information input before occurrence of the bus resetting responsive to the request from said first input/output means to said first input/output means, said first input/output means re-outputting printing data based on the information output by said second input/output means.

A picture data transferring method for processing picture signals input from outside to generate picture data to be transferred, comprising:

• a step of outputting the picture data generated on processing said picture signals to a reception device as said printing data is comprehended in a packet conforming to the IEEE (The Institute of Electrical and Electronics Engineers)1394 standard;
• a step of requesting said reception device to transmit the information pertinent to said picture data, output before occurrence of bus resetting with respect to said reception device when such bus resetting occurs during outputting the printing data;
• and
• a step of managing control to perform the processing of re-outputting the printing data, based on the information on said printing data output from said reception device;
• wherein
• at least one of the data position information, printing page information and the printing picture information, derived from the data size of data received by said reception device, responsive to the information pertinent to the printing data, input before occurrence of bus resetting, is input, and wherein printing data as from the printing data not received by said reception device due to interruption by said bus resetting is output to said printing device.

A picture data receiving method for receiving picture data from a picture data transferring device, comprising:

• a step of outputting a response packet responsive to a command packet conforming to the IEEE (The Institute of Electrical and Electronics Engineers)1394 standard, input from said picture data transferring device;
• a step of receiving said picture data, comprehended in a packet conforming to still image data IEEE 1394 standard, from said picture data transferring device;
• and
• a step of managing control so that, if bus resetting occurs with respect to said picture data transferring device during inputting the picture data, the information of said picture data input before occurrence of bus resetting is output to said picture data transferring device will be output to said picture data transferring device;
• wherein
• control is managed so that, as the information pertinent to said picture data input before occurrence of said bus resetting, at least one of the data position information, printing page information and the printing picture information, derived from the data size of received data, will be output to said picture data transferring device;
• and wherein printing data as from the printing data not received by said reception device due to interruption by said bus resetting is received for processing.