17 January, 2003 ELECTRICAL COMPONENT DEFECTS
4-65
Trouble-
shooting
Component CN Condition Symptom
Open
Toner near end may not be
detected even when the toner near
end condition is satisfied.
Toner end sensor
K: 209-A2
Y: 206-A7
C: 206-A4
M: 206-A1
Shorted
Toner near end may be detected
even when the toner near end
condition is not satisfied.
Open
Drum gear
position sensor
K: 213-13
CMY: 210-B12
Shorted
SC440
Open
Waste oil near full message is
displayed.
Waste oil sensor 212-A13
Shorted
Waste oil near full message is not
displayed even when a waste oil
near full condition exists, causing a
waste oil leak.
Open
The message “Reset waste oil
bottle correctly” is displayed even
when it is set correctly.
Waste oil bottle
set sensor
212-A16
Shorted
The message “Reset waste oil
bottle correctly” is not displayed
even when it is not set correctly.
Open
Waste toner near full message is
displayed, even when a waste toner
near full condition does not exist.
Waste toner
sensor
213-A4
Shorted
Waste toner near full message is
not displayed even when a waste
toner near full condition exists,
causing waste toner leak.
NOTE: The CN numbers are the connector numbers on the BCU.
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