XC-540 Assy, Pulley - 6700319030 ,this is original Roland parts.

 Pump Assembly Cap Assy for Epson Stylus Pro 3800/3850/3885/3890/3880 -161749800

Original Air Pressure Pump for Epson Stylus Pro 3800/3800C/3850 / 3880 / 3885 / 3890-1451562

Original Air pressure pump for Epson Stylus PRO 7890/7700/7900 9700/9890/9900 -1504215

Original Scale for Epson S30680 / S50680 / S70680 / F7080 / B7080 -1574120

VJ-1604 CR motor Assy- DG-41077

this is Generic 

Use for: 

VJ-1604W/ VJ-1614 / VJ-1608 ;

VJ-1638 CR motor assy-DG-42456, This is Generic.

Epson S30680 S50680 S70680 F7080 B7080 Encoder Strip Linear Scale-1574120

S30680 Wiper Box Assy for S60680 S40680 F2080 F2180 F9380 B9080 B7080 

VJ-1604 1624 Steel Bearer Assy DG-41917