Epson surecolor S series printer bulk ink system Bulk ink system for surecolor S30670 S50670 S70670 1:Easy to install and operate. 2:Minimizing printing cost. 3:Printing a great a mount of graphics without workers. We offer the chip decoder for this bulk ink sytem. S30670 C ,M ,Y ,K 4 color S50670 C ,M , Y ,k ,White double 5 color S70680 C, M ,Y , K ,LC , LM , LBK , orange , white ,silver