Fan Control - HP LaserJet Enterprise 700 M712 series Handbuch Zur Fehlerbehebung

The DC controller determines if the motor has failed and notifies the formatter when the motor
encounters the following conditions:
Startup failure — The motor does not reach a specified rotational count within a specified time
●
from when the motor starts.
Rotational failure — The rotational speed of the motor is not in the specified range for a specified
●
time after the motor reaches a specified speed.
The DC controller notifies the formatter of a BD (beam detect) failure when it detects a rotational failure
of the scanner motor.
The DC controller monitors the related part condition of the following motors to determine a motor
failure:
Upper cassette lifter motor
●
Lower cassette lifter motor
●

Fan control

The product has three fans for preventing the temperature from rising in the product and cooling down
the delivered paper.
8 Chapter 1 Theory of operation ENWW