Figure 7.1: Printer camera color balance gets strange
The camera in the Polar3D printer attempts to perform automatic color balancing. However, occasionally its color balancing algorithm may yield strange results, where the camera picture appears to have a strange overall tinge. (In particular, this may happen if the printer is left on in dark surroundings, such as overnight; when the lights get brighter, as in the morning, the color balancing may not readjust properly.) See for instance Figure 7.1, where the image has a blue cast.
Power-cycling the printer (unplugging it and then plugging it back in) may reset the camera so that a correct color balance is restored.