43856301TH Rev.3 21 /Oki Data CONFIDENTIAL 2. Operating instructions2.2 Printing processThe paper fed from tray 1 or tray 2, tray.3 is transferred by feeder roller, resister rollerL, and transfer roller. It is transferred by MPT paper feed roller and resister roller Uwhen the paper is fed from MPT. After that, the paper on the belt passes through theelectrophotography process of KYMC, and sequentially the unfused toner image isgenerated on the paper. And then, the toner is fused by heat and pressure when itis passed through the fuse unit. After fusing, the paper is delivered to the faceup orfacedown stacker by utilization of different delivery methods by opening or closing thefaceup stacker.The operation of single-sided printing is described as above. The operation of duplexprinting is described as below.As for the duplex print, the paper passed the fuse unit after initially back printing is drawninto the Duplex unit by separator DUP. The paper entered into the paper reversing path istransferred from the paper reversing path to the inside of Duplex by reverse operation ofreversal roller. The paper passed over the inside of Duplex is fed from paper feed path ofDuplex by the transfer roller set in the transfer path of Duplex inside, which is shared withthe same paper feed path from the tray. The following operation is same as single-sidedprinting with paper feeding from the tray.Face-down stackerFace-up stackerMPTPaper reversing pathTransport rollerTransport rollerPaper feed rollerResister roller LResister roller UMPT paper feed rollerTransport beltTransport rollerReversal rollerSeparator DUPHeat rollerBackup rollerHalogen lamp
