Service Manual for OKIPAGE 14exChapter 6 TroubleshootingPage: 84(5) Cyclical defectFrequency RemedyImage Drum 3.71" (94.2mm) Clean or replace the image drum unit.Developing roller 1.86" (47.12mm) Replace the image drum unit.Toner supply roller 2.96" (75.27mm) Replace the image drum unit.Charging roller 1.21" (30.63mm) Replace the image drum unit.Cleaning roller 0.93" (23.56mm) Replace the image drum unit.Transfer roller 1.95" (49.6mm) Replace the image drum unit.Heat roller 2.44" (62.0mm) Replace the heat roller.Back-up roller 2.73" (69.4mm) Replace back-up roller.Note: After replacing the image drum cartridge, set the printer to the user maintenance mode by turning the power on while pressing the MENU key, and reset thedrum counter (see Printer Handbook).Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange(BPX) for any updates to this material. (http://bpx.okidata.com)