	US 7,458,652 B2
	Data transferring apparatus for transferring liquid ejection data and a liquid ejecting apparatus
Masahiro Kimura, Nagano-ken (Japan); Yasunori Fukumitsu, Nagano-ken (Japan); Yasuhisa Yamamoto, Nagano-ken (Japan); and Masahiro Igarashi, Nagano-ken (Japan)
Assigned to Seiko Epson Corporation, Tokyo (Japan)
Filed on Apr. 19, 2006, as Appl. No. 11/408,280.
Application 11/408280 is a division of application No. 10/649545, filed on Aug. 26, 2003, granted, now 7,083,244.
Claims priority of application No. 2002-245174 (JP), filed on Aug. 26, 2002; application No. 2002-245209 (JP), filed on Aug. 26, 2002; application No. 2002-245243 (JP), filed on Aug. 26, 2002; application No. 2002-245366 (JP), filed on Aug. 26, 2002; application No. 2002-162120 (JP), filed on Jun. 06, 2003; application No. 2003-162047 (JP), filed on Jun. 06, 2003; application No. 2003-162153 (JP), filed on Jun. 06, 2003; and application No. 2003-162221 (JP), filed on Jun. 06, 2003.
Prior Publication US 2006/0187248 A1, Aug. 24, 2006
Int. Cl. B41J 29/38 (2006.01)

U.S. Cl. 347—5 [358/1.16]

14 Claims

14. 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 a 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.