(Quoted from Roland DG Press Release. Full article here via Printing Impressions)

Roland DG Corp. has announced the launch of its new SOLJET EJ-640 wide-format inkjet printer.The SOLJET EJ-640 wide-format inkjet printer has been launched by Roland DG Corp. 
With dual staggered print heads, an integrated tri-heater system, rigid industrial design and high-capacity 1-liter ink cartridges available in four- or seven-color configurations, the EJ-640 is built for optimum performance and productivity. In a mirrored CMYK ink configuration, the EJ-640 achieves speeds of up 102m2/hr. The EJ-640 uses new EJ INK, developed to offer substantially lower operating costs. New Roland VersaWorks Dual RIP software processes both PDF and PostScript files, including files with transparencies.

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