... model refill cartridge with chip, easy to refill inks, protect environment.1.Adopt the spongeless structure, avoid to break the printer head because of the ... spot, block the printer head when printing in any environment.3. With different chip can use for many model printer, such ... as R270, R290,T50, T1100, T10, C79, C91 etc. high quality refill cartridge for new model ...