CHAPTER 13 TROUBLESHOOTINGCOPYRIGHT © 2002 CANON INC. 2000 CANON iR1600/iR2000 REV.1 JAN. 200213-283.3.12 The output has white strips. (cross-feeding direction)Paper1) Try paper fresh out of package. Is the problem corrected?YES: 1. The paper may be moist. Advise the user on the correct methodof storing paper.2. Advise the user that the use of paper not of a recommended typemay not bring the best results.Machine state2) Execute ‘PRINT’. Is the output image normal? (See 5.5.5 of Chap-ter 13.)YES: Go to step 5.Developing assembly3) Is there a scratch on the surface of the developing assembly?YES: Replace the developing assembly.Drum unit4) Is there a scratch in the surface of the photosensitive drum?YES: Clean the drum. If the fault is not corrected, replace the drum unit.Contact sensor5) Clean the rod lens array of the contact sensor. Is the fault cor-rected?YES: End.Gain auto adjustment6) Execute gain auto adjustment. Is the fault corrected? (See 2.3.2 ofChapter 13.)YES: End.CS unit7) Are the CS unit and the spacers mounted correctly? Also, are thespacers free of wear?YES: Replace the contact sensor.NO: Correct the fault. If the fault cannot be corrected, replace the faultypart.