There are a few parts you need to ensure you can complete your maintenance and keep your printer running without any interruption.
These are the parts I suggest keeping in stock at all times.
All genuine Epson Parts and Accessories can be ordered from shopmelco.com
Epson Maintenance Kit: http://www.shopmelco.com/Epson_F2000_Maintenance_Kit_p/34692.htm
Tube Cleaning Kit: http://www.shopmelco.com/product_p/34951.htm
White Ink: http://www.shopmelco.com/Epson_F2000_Ink_p/34689.htm
Cleaning Cartridges: http://www.shopmelco.com/Epson_2000_Cleaning_Cartridge_p/34690.htm
Print Head Cleaning Kit: http://www.shopmelco.com/Epson_F2000_Print_Head_Cleaning_Kit_p/34691.htm
Air Filter: http://www.shopmelco.com/F2000_Air_Filter_p/34693.htm
Pretreat Solution: http://www.shopmelco.com/Epson_F2000_Pretreat_p/34719.htm