Fan motors (FM1, FM2, and FM3) The printer contains three exhaust fans, all of which use DC brushless motors. Table 33 describes when each of the fans operates and at what speed each operates. Table 33. Fan operation Power Save or power off minutes Power Save or power off >30 minutes Turn printer on Standby Printing FM1* Full speed On On On Off FM2 Full speed Full speed Full speed Full speed Off FM3 Off Off Full speed Off Off * FM1 contains a thermistor, and the fan speed changes according to the temperature inside the printer. EN Mechanical systems 177