| 摘要 |
An inkjet recording device according to the present invention performs preliminary ejection, not at an interval of fixed time but at a time detected by the inkjet recording device, to reduce the number of preliminary ejection for high-quality image recording or to reduce the number of preliminary ejection and the required time for higher throughput and faster image recording. To do so, with a sequence of nozzles of a recording head divided into plurality of nozzle blocks each composed of a plurality of nozzles, a command analysis unit 1003 analyzes recording data. A setting data count unit 1009 counts the number of occurrences of consecutive count patterns predetermined for each nozzle block according to the count patterns that are set in a preliminary ejection setting unit 1008 and the analysis result of the command analysis unit 1003. A preliminary ejection control unit 1010 checks, for each block, if the count value has reached a predetermined value and, if the count value has reached the predetermined value in at least one block, starts preliminary ejection for the recording head. In addition, a recording device comprising a plurality of head modules each including at least one recording head calculates the number of accumulated recorded pixels for each recording head to reduce the number of recovery operations, which involves the wipe operation with the use of a wiper blade, for a low-recording-density recording head (or a sub-head module).
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