2K5
1-3-50
U155
Checking sensors for toner
Description
Displays the on-off status of each sensor or switch related to toner.
Purpose
To check if the sensors and switches operate correctly.
Method
1. Press the start key.
2. Turn each switch on and off manually to check the status.
When the on-status of a switch is detected, that switch is displayed in reverse.
3. To stop motor driving, press [MOTOR ON] again.
Completion
Press the stop key. The screen for selecting a maintenance item No. is displayed.
U157
Checking the developing drive time
Description
Displays the developing drive time for checking, which is used as a reference when correcting the toner con-
trol.
Purpose
To check the developing drive time after replacing the developing unit.
Method
1. Press the start key. The developing drive time is displayed in minutes.
Completion
Press the stop key. The screen for selecting a maintenance item No. is displayed.
U158
Checking the developing count
Description
Displays the developing count for checking.
Purpose
To check the developing count after replacing the developing unit.
Method
1. Press the start key. The developing counter count is displayed.
Completion
Press the stop key. The screen for selecting a maintenance item No. is displayed.
Maintenance
item No.
Description
Display Switches and sensors
DEVELOPER SENSOR Toner sensor (TNS)
CONTAINER SET Toner container detection switch (TCDSW)
CONTAINER SENSOR Toner container sensor (TCS)
DISPOSAL TANK SENSOR Overflow sensor (OFS)
MOTOR The toner feed clutch (TFCL) and the paper feed motor (PFM)
are turned on.
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