Chapter 1515-2015.3.1.7 Smudged/Streaked15.3.1.7.1 Lines in sub scanning direction: Main Controller PCB is faulty0016-0403Color iR C3380G / Color iR C2880G / Color iR C3380i / Color iR C3380 / Color iR C2880i / Color iR C2880 / iR C3480 / iR C3480i / iR C3080i / iR C2550[ Inspected by Canon Inc. ]DescriptionSince lines appeard in the sub scanning direction, the Main Controller PCB was replaced with a new one to solve them.Field Remedy1. Re-fit all the connectors on the Main Controller PCB.2. If the symptom still occurs, replace the Main Controller PCB with a new one.FM2-9163 Main Controller PCB Assembly15.3.1.7.2 Soiled image occurs 1mm away from rear side of A3-size paper0018-2936Color iR C3380G / Color iR C2880G / Color iR C3380i / Color iR C3380 / Color iR C2880i / Color iR C2880 / iR C3480 / iR C3480i / iR C3080i / iR C2550[ Inspected by Canon Inc. ]DescriptionSince a soiling appeared in the sub scanning direction about 1mm away from the rear side of the image area as if the printed image was smeared at time ofoutputting A3-size paper, the shutter of the registration detection sensor PCB (UN15) was modified for solution.Field RemedyCheck to see if the shutter of the registration detection sensor PCB (UN15) operates normally; if not, modify it.15.3.1.7.3 Fine lines appear in main scanning direction at approx. 1mm to 1.5mm intervals: PDRM-EF-A PCB (upper) is faulty0018-7646Color iR C3380G / Color iR C2880G / Color iR C3380i / Color iR C3380 / Color iR C2880i / Color iR C2880 / iR C3480 / iR C3480i / iR C3080 / iR C3080i / iRC2550[ Inspected by Canon Inc. ]DescriptionSince the PDRM-EF-A PCB connected at J1051 on the main controller PCB was faulty, fine lines appeared throughout page in the main scanning directionat approx. 1mm to 1.5mm intervals.F-15-27Reference: The PDRM-EF-A PCB is used to process images for printer output (color space compression, background removal, LOG conversion, directmapping, color balance, zoom fine adjustment, gradation conversion, screen processing, framing, add-on)Field Remedy
