If flashing red is every 2 seconds:

  1. No label is loaded, it will be red. Ensure that the labels are loaded correctly.
  2. Wrong paper size. Please click this link to run automatic label identification
  3. Label quality has an issue, the sensor can not detect it. Please ensure to use the right quality label, suggest to order from Jadens store. 

If flashing red is 2 times per second:

  •          The printer cover is not closed well. Check that the printer cover is completely closed.