Operation - Konica Minolta bizhub 169 Service Manual

Theory of Operation Ver. 1.0 Apr. 2007
23.1.2

Operation

A. Function
Motor Name Control Conditions
• A fan motor draws air from the area around the Fusing Unit to the out-
Fusing cooling
• Ozone produced from the PC Drum Charge Corona is absorbed by
fan motor (FM1)
• The fan motor is turned at full speed during a print cycle and at a
• A cooling fan motor draws air from the area around the Power Supply
Power unit cooling
fan motor (FM2) • The cooling fan motor is turned at full speed when the Main Motor
B. Fan control
Motor Name
Fusing cooling
fan motor (FM1)
Power unit cooling
fan motor (FM2)
side to prevent the machine interior temperature from running high. In
addition, the fan motor pulls paper being transported up through suc-
tion force to help stabilize paper transport.
the Ozone Filter from the air drawn by a fan motor to the outside.
speed reduction during other timings, thereby making the machine
quieter without sacrificing cooling performance.
Unit to the outside to prevent the Power Supply Unit temperature from
running high.
turns and at a speed reduction during other timings, thereby making
the machine quieter without sacrificing cooling performance.
Control
• During a print cycle (full speed rotation after the lapse
Full speed of a given period of time after the start of the print
cycle)
• Half speed rotation after the lapse of a given period of
time after the end of the print cycle
Half speed
• Half speed rotation at any timing other than the full
speed and stop control
• When a malfunction occurs
Stop
• When the right door is open
Full speed • When power is turned ON or Sleep is canceled
• Half speed rotation if the main motor (M1) is deener-
Stop gized after the lapse of a given period of time after the
full speed rotation
Control Conditions
23. Others
63