Motors and fans
The product has four motors and four fan motors. The motors are used for the media feeding and image
formation. The fan motors are used for preventing a temperature rise inside the product.
Table 1-3 Fans
Description Cooling area Type Speed
Cooling fan FN101 Cartridge area and power supply area Intake
Full/Half
1
Cooling fan FN102 Cartridge area Intake
Full
2
Cooling fan FN103 Cartridge area Intake
Full
2
Cooling fan FN301 Cartridge area and laser/scanner Intake
Full
2
1
Cooling fan FN101 rotates at full speed for eight seconds when the product is turned on, and then decreases to half-speed for
approximately 10 minutes. After that time period, if there is no print job in the print queue, the fan will stop completely. The
fan rotates at full speed during a print job.
2
This fan operates at full speed only during a print job. Otherwise, it does not rotate.
Table 1-4 Motors
Description Driving parts Type Failure
detection
Paper feed motor (M101) Drives the Tray 1 pickup roller, Tray 2 pickup roller,
and feed roller
DC Yes
Drum motor (M102) Drives the photosensitive drum, primary charging roller,
and transfer roller
DC Yes
Fuser motor (M299) Drives the pressure roller and feed roller—when rotated
counterclockwise it releases the fusing pressure for
easier jam removal
DC Yes
Lifter motor (M103) Drives the lifting plate of the tray DC No
Failure detection
Motor failure
The DC controller determines a motor failure and notifies the formatter when it encounters the following
conditions:
●
Motor start-up failure: The motor does not reach a specified speed within a specified period
from when each motor starts up.
●
Motor rotational failure: The rotational speed of the motor is out of a specified range for a
specified period from when it once reaches a specified speed.
Fan motor failure
The DC controller determines a fan motor failure and notifies the formatter when the fan locks for a
specified period from when each fan starts up.
14 Chapter 1 Theory of operation ENWW
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