43984801TH Rev.1 24 /Oki Data CONFIDENTIAL 2. Operational explanation2.2 Printing processThe paper fed from Tray 1 and Tray 2 is conveyed by feeding roller, conveying roller, and resist roller.When feeding paper is from MPT, it is conveyed by MPT, feeding roller, and resist roller. After that thefeeding paper that is conveyed by image drum and the nip part of transfer roller forms toner imageon the paper through electrophotographic process. And then, the toner on the paper is fused by theheat and pressure as the fuser unit passing through. The paper that fused the toner image is ejectedfrom the face down stacker of the ejecting roller. In the case of face up ejecting, it needs to openthe backside cover and install face up stacker. (It is unavailable for duplex printing while it is face upejecting.)The above is about the operations at simplex printing, yet the below explains the operations at duplexprinting. While duplex printing, the paper, which firstly passed through the fuser unit after the backsideprinting, is conveyed to the inward of Duplex Unit, by the reverse operation of the second ejecting rollerthat is a certain time after removing the first ejecting roller of the paper rear side. Paper, is conveyed byconveying roller of Duplex Unit, and then merges to the same route with the feeding paper that is fromthe tray. Onwards, it is the same with the simplex printing operation by the feeding paper from tray.:::::::::Face down stackerFace up stackerThe 2nd ejecting rollerThe 1st ejecting rollerBackup rollerDuplex unitEjectingsensor leverResist rollerMPT feeding rollerMultipurpose trayConveying rollerConveying rollerTransferring rollerPulse motorPaper conveying routeDriving roller (Continuous rotation)Driving roller (Control rotation)Driving rollerPaper level indicator leverIndicating leverPhoto sensorMicro switchMagnetic clutchSolenoidDC motorHeat rollerConveying rollerPick up rollerPick up rollerFeeding rollerFeeding rollerTray 1Tray 22nd tray unit (option)Entrancesensor leverImage drumWriting outsensor lever