Posted 30 November 2012 - 12:49
Having worked for Nokia in the past, early 2000s, as a repair guy I can tell you we did power them on and visually inspect that they work. however there were also functional testing machines that'll do a per pixel test of the screen. I assume they do the same with the cameras too and it's all automatic usually. The handsets are then re-flashed to clear them and give them the latest firmware/branding before they are re-boxed.
Looks to be someone working in the flash/imei coding. The black and cream printer at the back looks to be a thermal printer for the imei number stickers.