e-STUDIO2555C/3055C/3555C/4555C/5055C
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ERROR CODE AND TROUBLESHOOTING
8 - 120
8.3.13
Drive system related service call
[C020] Developer drive motor abnormality
Classification
Error content
Drive system related service
call
Developer drive motor abnormality: The developer drive motor is
not rotating normally.
Check item
Measures
Developer unit
•
Check if the developer material is caked.
•
Check if there is any abnormality in the row of gears on the rear
side of the developer unit.
•
Check if the amount of developer material is proper.
Development drive unit/Paper
feeding drive unit
•
Check if there is any foreign matter between the gears.
•
Check if there is any damage on the gear tooth surface.
•
Check if there is any scratch on the caliber or the shaft of each
gear.
•
Check if the proper amount of grease is applied to the caliber or
the shaft of each gear.
•
Check if there is any damage to the developer drive output
coupling.
Paper feeding/developer unit
drive motor
•
Check that the motor is rotated normally. (03-112)
•
Connector check
•
Harness check
Drum TBU drive unit
•
Check if there is any foreign matter in the row of the color
developer drive gears.
•
Check if there is any damage on the tooth surface of the color
developer drive gears.
•
Check if there is any scratch on the caliber or the shaft of each
color developer drive gear.
•
Check if the proper amount of grease is applied to the caliber or
the shaft of each color developer drive gear.
•
Check if there is any damage to the developer drive output
coupling.
LGC board
•
Board check
•
Connector check (CN391, CN392)
•
Harness check
1st/2nd drawer feed roller
•
Check if the 1st drawer feed roller is overloaded.
•
Check if there is any damage to the roller coupling.
Bypass unit
•
Check if the bypass feed roller is overloaded.
•
Check if there is any damage to the row of the bypass unit
gears.
Paper feeding drive section
•
Check if there is any foreign matter between the gears.
•
Check if there is any damage on the gear tooth surface.
•
Check if there is any scratch on the caliber or the shaft of each
gear.
Transport roller
•
Check if the PFU transport roller is overloaded.
Parts to be replaced
Remark
Developer unit
Feeding/developing drive unit
Paper feeding/developer unit drive
motor
Drum TBU drive unit
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