Theory of Operation Ver. 1.0 Sep. 2008
Motor name
Fusing cooling fan
motor (FM13)
Exhaust fan motor
(FM14)
Cooling fan motor/1
(FM16)
*1: Some operations selected in the service mode (Paper path check etc.)
*2: During a print job, until the paper exit sensor detects a paper present condition, the fan
motor continues to rotate at half speed.
Half speed control:
When switching from stop to half speed control, the fan will rotate at full speed and then will
rotate at half speed.
Y109670-2
Control
OFF
• At paper-jam, in trouble, or when the door is open
• When updating the firmware
• In sleep
• When a waste toner box, IU, or TC is not installed
ON
• In standby
(Half speed)
• At warm-up, At fusing roller's preparatory rotation
• At initial operation, image stabilization, function *1
• In low-power
ON
• When printing
(Full speed)
OFF
• At paper-jam, in trouble, or when the door is open
• When updating the firmware
• In low-power or sleep
• In standby
• At fusing roller's preparatory rotation
• When a waste toner box, IU, or TC is not installed
ON
(Half speed)
ON
• At warm-up
(Full speed)
• At initial operation, image stabilization, function *1
• When printing
OFF
• At paper-jam, in trouble, or when the door is open
• In low-power or sleep
• When updating the firmware
• When a waste toner box, IU, or TC is not installed
• In standby
ON
• At fusing roller's preparatory rotation
(Half speed)
ON
• At warm-up
(Full speed)
• When printing
• At initial operation, image stabilization, function *1
Theory of Operation
Control conditions (outline)
—
22. Other control
109