Chapter 1414-714.2.1.4 Partially Blank/Streaked14.2.1.4.1 White lines appear in sub scanning direction on solid black and halftone images: Dust on top cover of Developing Assembly0008-3408iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /[ Inspected by Canon Inc. ]DescriptionAs a result of inspection, it was found this symptom occurred because the laser light was intercepted by dust on the top cover of the developing assembly. If thesymptom occurs, remove the developing assembly and clean its top cover referring to the Service Manual [Maintenance and Inspection > Cleaning > Cleaning theDeveloping Assembly Spacer, Feed Guide, Dust-Blocking Glass and Fixing Inlet Guide].F-14-514.2.1.4.2 White lines appear in sub scanning direction on solid black and halftone images: Foreign substances adhere to edge of FeederGuide0008-3472iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /[ Inspected by Canon Inc. ]DescriptionAs a result of inspection, it was found this symptom occurred because foreign substances on the edge of the feed guide of the developing assembly came into contactwith the surface of the drum. If the symptom occurs, clean the feed guide referring to the Service Manual [Maintenance and Inspection > Cleaning > Cleaning theDeveloping Assembly Spacer, Feed Guide, Dust-Blocking Glass and Fixing Inlet Guide].
