Recording apparatus and control method therefor
AssigneeCanon Kabushiki Kaisha
InventorYukinori Nishikawa
Life of this patent
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Abstract
A recording apparatus performs converting each of recording data and control data for controlling a recording head into transfer data in a command format and transmitting the transfer data to the recording head via a transmission path, and detecting, in the recording head, an error in the received transfer data, and, in the transmission after detecting the error, reconstructs next transfer data in such a manner that a command that has been included in the transfer data in which the error has occurred among commands concerning the control data and that is scheduled not to be included in the next transfer data is included in the next transfer data, and then transmits the next transfer data reconstructed.
Claims9
A recording apparatus which includes a recording head including a plurality of recording elements and which performs recording based on recording data on a recording medium by driving the plurality of recording elements, the recording apparatus comprising:
- a controller connected to the recording head via a transmission path and configured to convert each of the recording data and control data for controlling the recording head into transfer data in a command format and to transmit the transfer data to the recording head;
- and
- an error detection unit provided at the recording head and configured to detect an error in the transfer data received by the recording head and to transmit a signal indicating detection of the error to the controller,
- wherein, upon receiving the signal indicating detection of the error, the controller reconstructs next transfer data in such a manner that a command that has been included in the transfer data in which the error has occurred among commands concerning the control data and that is scheduled not to be included in the next transfer data is included in the next transfer data, and then transmits the next transfer data reconstructed.
The recording apparatus according to claim I, wherein the error detection unit detects an error about a command concerning the recording data and an error about a command other than the command concerning the recording data while distinguishing between them.
A control od for a recording apparatus which includes a recording head including a plurality of recording elements and which performs recording based on recording data on a recording medium by driving the plurality of recording elements, the control method comprising:
- a transmission process of converting each of the recording data and control data for controlling the recording head into transfer data in a command format and transmitting the transfer data to the recording head via a transmission path;
- and
- a process of detecting, in the recording head, an error in the received transfer data,
- wherein the transmission process after detecting the error includes reconstructing next transfer data in such a manner that a command that has been included in the transfer data in which the error has occurred among commands concerning the control data and that is scheduled not to be included in the next transfer data is included in the next transfer data, and then transmitting the next transfer data reconstructed.
Dependencies are inferred from the claim text.