Laser scanner failure detection The DC controller determines a laser scanner failure and notifies the formatter of the error state when any of the following conditions occurs: ● BD failure A specified BD interval is not detected within a specified period during the scanner motor drive. ● Scanner motor start-up failure The scanner motor does not reach a specified rotation within a specified period from when the laser scanner starts driving. ● Laser failure A specified laser intensity is not detected. Laser scanner safety function The laser scanner has a mechanical shutter.
For user and service technician safety, the laser shutter interrupts optical path of the laser scanner when the cartridge door is open. ENWW Laser scanner system 21