LIFE TIME TESTING APPARATUS OF ADF/DADF

摘要

PURPOSE: An ADF(Automatic Document Feeder)/DADF(Duplex ADF) life time testing apparatus is provided to check a lifetime of an ADF/DADF because papers discharged from a printer and scanner are supplied to the printer and scanner after aligning. CONSTITUTION: An ADF/DADF life time testing apparatus comprises a paper guiding unit, a paper support unit, a paper re-feeding unit, and a rear transferring unit. The paper guiding unit receives papers discharged from a paper discharging unit, thereby discharging the papers to the rear side. The paper support unit comprises a guide hole(211) and a projected portion(212). The guide holes are formed in both sides of the guide hole. The paper support unit aligns the discharged papers through the paper guiding unit. The paper re-feeding unit feeds the paper piled on the paper support unit to a paper inlet part of the printers and scanners again. The rear transferring unit transfers the papers to the front side while tallying the heights of a paper feeding unit and the paper support unit.