Chapter 1414-8F-14-614.2.1.4.3 Void/uneven image/toner is not supplied: Because connector of toner feedscrew motor is unplugged0010-4137iR2270 / iR2870 / iR3570 / iR4570 / / / / / iR2230 / / / iR3530 / / / / /[ Inspected by Canon Inc. ]DescriptionAs a result of inspection, it was found that the symptom occurred because the connector of the toner feed screw motor was unplugged.Field RemedyWhen the symptom occurs, execute the following service mode to make a test run of the toner feedscrew motor. If operating noise does not occur, check theconnector J3205 of the motor in the rear side of the hopper assembly.[Service mode > COPIER > FUNCTION > PART-CHK > MTR > enter "9" > OK > MTR-ON].14.2.1.4.4 Faulty image/void (in sub scanning direction) appears approx. 10mm away from front side of paper: Because contact imagesensor is faulty0010-6762iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 / / / / /[ Inspected by Canon Inc. ]DescriptionIn a certain inspection case, void (in sub scanning direction) appeared approx. 10mm away from the front side of paper; however, replacement of the contact imagesensor corrected it.Field RemedyIf there is a difference in the position of void between when an image size is enlarged and when the image size is reduced, replace the contact image sensor with anew one.FL2-3000 Contact Image Sensor Unit14.2.1.4.5 Void at about 43mm intervals/uneven density (in main scanning direction): Because developing assembly is faulty0010-7368iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 / / / / /