About the ink and precoat oil
Usually, our printer uses colored ink cartridge which can print any effect you need. The type of colored ink cartridge is Lexmark26/27 or Lenovo 13 is OK . and you can buy from your local market. Actually, if you only use the ink, no clear stable designs would be kept on the objects. So, you need another very important consumable---special precoat oil, which need to be applied before printing and determines the clearance and keeping time of the designs. Our company cooperated with famous chemic experts and invented the special pre-coat oil. It quickly get dried, strongly inserted and ink absorbing ability. It can make the designs printed on objects much brighter, vivid, and also waterproof. For example, designs on flowers can be kept even till flowers get perished. We present two bottles of precoat oil and one standard ink cartridge attached with each printer, if buy separately, precoat oil: US$5.00/50bottle(50ml) (T-shirt Precoat 8US$/200ml) ,all ink cartridge: $35.00/pcs (include T-shirt Printer). 

Here I should recommend you our Special-Refilling-Ink-Group which has one alternative ink cartridges and 150ml inject ink that prepared helping inject the same ink color when it is used out, it not only simply equal 14 units ink cartridge, but also can renew the lesser ink color, overcome the disadvantage, while one ink color is used of, all the cartridge would can't be used. About the operation, we would provide one disc to show you all the details.                 
For example: the common ink cartridge could print 4000-6000nails or 400-600flowers, while our special-groups-ink could print 250,000nails or 7000flowers.