I can take away the ink bottle from ink bottle holder, the sensor at the bottle goes from green to yellow but the controller does not see it.
The electronics of this inkjet checks the ink bottle sensor only when it starts pumping ink. Please read well, it only checks the sensor state when it tries to pump ink.
You will see the following in the log file.
Don’t let the inkjet run out of ink. It will take you hours to get all air bubbles out!
When does the ink pump start pumping?
If the ink temperature is set to 40C, when the level goes below 495 as set in extended settings.
Where do I see the ink level?
You can see these values during production if you plug in the service cable on the GT-Jet head and follow it with hyper-terminal.