The genuine epson ci3s050478 waste toner collector helps to maintain your laser printer in perfect working order and is designed to prevent costly service calls outs this original epson c13s050478 waste cartridge is specifically designed for your machine and has been manufactured to exacting standards by epson who use highly durable parts for maximum reliability and performance by using the epson s050478 waste tank you collect any left over toner residue that builds up during the laser printi