![]() Clean the area around the sensor (e.g.: sensor shutter) if it is stained, so that the sensor surface does not become dirty. Clean the sensor surface with a cotton swab or a soft cloth. Slide the sensor shutter so that the sensor surface can be seen.Check the connector and the harness between the sensor shutter solenoid and the LGC board.(Opening: 03-125 / Closing: 03- 175) If the sensor shutter is not opening or closing, check if it is damaged or there is any abnormality in the sensor shutter solenoid. Check if the sensor shutter is opening or closing normally.Is the sensor surface of the image quality sensor clean? Yes 8 No 6 6 Sensor unit Take off the transfer belt unit so that you can see the sensor unit.Is the sensor shutter of the image quality sensor opening or closing normally? Or is it normal without any damage?.(ON: 03-101 / OFF: 03-151) If they are not rotating normally, check if their drive gears are damaged or if they contact the equipment. 4 4 Drum and transfer belt Check if the drum and the transfer belt are properly operated. If there is any abnormality, correct it, and clean the transfer belt. If any, check the installation status of the TBU cleaner unit. 3 3 Transfer belt Check if any toner image remains on the transfer belt surface. Are the drum and the transfer belt rotating? Yes 5 No 2 2 Transfer belt unit Check if the transfer belt unit is securely installed.Are there any abnormal stains (cleaning defects), large scratches or breaking on the transfer belt surface?. ![]()
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