Data transferring apparatus for transferring liquid ejection data and a liquid ejecting apparatus

A data transferring apparatus for transferring liquid ejection data, comprising:

• a decode unit comprising a decode circuit capable of performing hardware development on a liquid ejection data, which is DMA-transferred per word unit from a main memory via a system bus, compressed to be capable of line development;
• a line buffer for storing liquid ejection data developed by said decode circuit per word unit and a DMA-transferring means for DMA-transferring liquid ejection data compressed to be capable of line development from said main memory to said decode circuit;
• and
• DMA-transferring liquid ejection data developed in said line buffer to said local memory per word unit and DMA-transferring developed liquid ejection data stored in said local memory to a register of a liquid ejecting head sequentially,
• wherein said decode unit comprises a data rearranging means for storing data in an array direction of a bitmap for said liquid ejecting head in said local memory, when data developed in said line buffer is DMA-transferred to a bitmap area of said local memory per word unit.

A liquid ejecting apparatus comprising a data transferring apparatus for transferring liquid ejection data comprising:

• a decode circuit capable of performing hardware development on liquid ejection data, which is DMA-transferred per word unit from a main memory via a system bus, compressed to be capable of line development;
• a line buffer for storing liquid ejection data developed by said decode circuit per word unit;
• a DMA-transferring means for DMA-transferring liquid ejection data compressed to be capable of line development from said main memory to said decode circuit, DMA-transferring liquid ejection data developed in said line buffer to said local memory per word unit and DMA-transferring developed liquid ejection-data stored in said local memory to a register of a liquid ejecting head sequentially;
• and
• a data rearranging means for storing data in an array direction of a bitmap for a liquid ejecting head corresponding to a nozzle array of a liquid ejecting head in said local memory, when data developed in said line buffer is DMA-transferred to a bitmap area of said local memory per word unit.