Operation; Function; Fan Control - Konica Minolta bizhub C35 Service Manual

DRAFT
Theory of operation Ver. 1.0 Feb. 2010

26.2 Operation

26.2.1

Function

Motor name
DC power supply fan
motor
Cooling fan motor
MFP board cooling
fan motor
26.2.2

Fan control

Motor name
DC power supply fan
motor
Cooling fan motor
MFP board cooling fan
motor
Function (purpose)
• Discharges heat generated from the interior parts (including the DC power
supply, transfer belt section, toner cartridges/C, M, Y, and motor drives) from
the main body to prevent the interior temperature from rising inordinately.
• Discharges heat generated from the print head from the main body to prevent
the print head temperature from becoming inordinately high.
• Removes ozone produced from the toner cartridges and charging section.
• Air passageway is formed on top of the DC power supply, in the duct inside
the toner cartridge rail, and below the print head housing. No air flows
through areas around the toner cartridges. This effectively prevents toner
from scattering.
• Blows outside air against the MFP board to prevent the board temperature
from rising.
Control Control conditions (outline)
During a print cycle, warm-up cycle (including door open/
ON (high
close), image stabilization sequence, or firmware upgrading,
speed)
high humidity inside the PH
ON (medium
No control
speed)
ON (low
Conditions other than those of ON (high speed)
speed)
OFF Not turned OFF
ON (high During a two-sided print cycle, when the door is opened and
speed) closed, during firmware upgrading, high humidity inside the PH
ON (medium
No control
speed)
ON (low
During a 1-sided print cycle
speed)
OFF Conditions other than those of ON (high speed)
ON (high
During a print cycle or firmware upgrading
speed)
ON (medium
No control
speed)
ON (low During transition to image stabilization mode or power save
speed) mode, when a malfunction occurs
During a warm-up cycle or in standby stateÅAwhen the door is
OFF
opened
26. FAN CONTROL
99