Are you using media that is likely to reflect light or has deep colors?

The machine may not be able to read crop marks printed on media that is likely to reflect light or has deep colors.

Procedure
  1. Execute Multi Sensor Adjustment to correct the sensor for reading crop marks.
  2. Tap Media Settings - Cutting Settings - Crop Cut Position Adjustment, and then select High for Crop Mark Detection Sensitivity.
    If the crop marks still cannot be read, change the media you are using.