No usable images could be produced during the testing sequence by the LightControl
The Affect
While testing the LightControl will make multiple photo's through the endoscope. When this error occurs the LightControl was unable to take photo's, or the photo's where not good enough, to make a meaningful assessment of the quality of the endoscope.
How to Resolve the Cause
Make sure that the sphere compartment does not move after positioning it correctly and the test has started. If the sphere compartment does move the test is aborted and this error will be shown.
When starting a test make sure that the light in the sphere compartment does turn on after moving it in position. When this light does not brighten the inside of the sphere, that gets slid over the tip of the endoscope during testing, no meaningful images can be produced.