GTO F-S52 feeding Problem

Hi everyone. ..I have a GTO 52 4 colors. Today l run it and start the sheet feeder , and it beeps at every paper when it pulls it ... I'm asking you if the problem is the blue sensor on the corner. ..note that I cleaned the sensor lens and the paper distance is perfect according to the corner ... I hope someone answer my question. .thank you. .

 

I am not familiar with the GTO but on older 102's the blue sensor is adjustable in lateral directions.

 

Check to make sure there isn't a piece of paper stuck under the guide, then start the press feeding paper, and turn the knurled screw above the sensor to move it closer the sheet until it stops beeping as long as you know that the sheetes are guiding properly. If that doesnt work, it means that the sensor itself is bad.