Partially Blank/Streaked; White Lines Appear In Sub Scanning Direction On Solid Black And Halftone Images: Dust On Top Cover Of Developing Assembly; White Lines Appear In Sub Scanning Direction On Solid Black And Halftone Images: Foreign Substances Adhere To Edge Of Feeder Guide - Canon iR3570 Service Manual

14.2.1.4 Partially Blank/Streaked

14.2.1.4.1 White lines appear in sub scanning direction on solid black and halftone images: Dust on top cover of Developing Assembly

iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /
[ Inspected by Canon Inc. ]
Description
As 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 the
symptom occurs, remove the developing assembly and clean its top cover referring to the Service Manual [Maintenance and Inspection > Cleaning > Cleaning the
Developing Assembly Spacer, Feed Guide, Dust-Blocking Glass and Fixing Inlet Guide].
14.2.1.4.2 White lines appear in sub scanning direction on solid black and halftone images: Foreign substances adhere to edge of Feeder
Guide
iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /
[ Inspected by Canon Inc. ]
Description
As 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 contact
with the surface of the drum. If the symptom occurs, clean the feed guide referring to the Service Manual [Maintenance and Inspection > Cleaning > Cleaning the
Developing Assembly Spacer, Feed Guide, Dust-Blocking Glass and Fixing Inlet Guide].
F-14-5
Chapter 14
0008-3408
0008-3472
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