Oki Data CONFIDENTIAL 3. Parts replacement44983601TH Rev.1 3-5 /PR Unit Cover-Side-R(3.3.4)Cover-Side-L(3.3.5)LED HEAD(3.3.1)Frame-Assy-Retard , Spring-Retard(3.3.27)Paper feeding roller(Roller-Pick-Up,Roller-Feed-NOW,Roller-Assy-MPT)(3.3.26)CU-Board(3.3.6)PWB unit - ACDC Switch(3.3.7)DC Main(3.3.8)Hopping / MPT / Regist Clutch(3.3.9)HV-Board / Motor-FAN(3.3.10)Cover Assy Rear(3.3.17)Cover Assy Ope(3.3.11)Cover Assy Stacker(3.3.13)Stacker Cover(3.3.14)Ope PCB Assy ( B431 )(3.3.12)MPT Assy , Manual Assy(3.3.16)Guide Eject Lower Assy(3.3.18)Eject Motor(3.3.19)Fuser Assy(3.3.15)Roller Regist(3.3.23)Roller Feed Assy(3.3.24)Plate Side R Assy / Plate Side L Assy/ Front Assy(3.3.20)Plate Side L Assy(3.3.21)Plate Side R Assy(3.3.22)Lever In Sensor / Lever WR Sensor/ Photo Interrupter(3.3.25)Roller Transfer(3.3.2)Duplex Belt(3.3.3)3.3 Parts replacement methodThis section explains the replacement method of the parts and assemblies that are shown in the followingdisassembling diagram.The explaining diagram of parts replacement procedure is B431dn.Replace part after performing the following operation.(1) Unplug the AC power cord from the main unit inlet by the disconnected status of power switch.(2) Unplug the interface cable from the main unit.
