Patent ID: 9665064
Date: 2017-05-30
CPC Classifications: G03G

Claim:
1. An output apparatus comprising: a toner storage unit provided in an output main unit for printing on print media by a toner method; an external toner supply unit provided outside the output main unit and comprising a toner container for storing and transferring the toner airtightly, and supplying the toner without air contact to the toner tank; an air pump characterized by a vacuum pump allowing simultaneous induction and discharge of air; an air induction line connected to an inside of the toner storage unit and an air inlet of the air pump for inducing air from the toner storage unit; an air supply line for transferring air caused by the air pump to the toner scattering unit of the external toner supply unit, the air supply line including a control unit for controlling operation of the air pump.