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KX-MB2110RUW/ KX-MB2130RUW/ KX-MB2170RUW/ KX-MB2117RUB/ KX-MB2137RUB/ KX-MB2177RUB
12.3.4.
Simplified Troubleshooting Guide
12.3.4.1. Printing
No.
Symptom
Cause
Countermeasure
1
Ghost Image
(P.133)
Failed drum cartridge
Replace drum cartridge
Failed transfer unit
Check the transfer roller and spring
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Go to High Voltage Section (P.187)
Failed fuser unit
Check the heat roller and the pressurized roller and the spring
and the heat lamp and the thermistor
and the heat lamp and the thermistor
Too thick or too thin recording paper
Use the recording paper from 16lb to 28lb
2
Dark or White Vertical
Line
Line
(P.134)
Dirty the reflecting mirror
Clean the reflecting mirror
Dust on the path of the laser beam
Clean the path of the laser beam
Failed drum cartridge
Replace drum cartridge
Failed the heat roller or the pressurized roller
Check the heat roller and the pressurized roller
Failed LSU
Go to LSU (Laser Scanning Unit) Section (P.53)
3
Dark or White Horizontal
Line
Line
(P.135)
Failed drum cartridge
Replace drum cartridge
Failed the gear
Check the gear
Failed the Main motor
Check the motor
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Go to High Voltage Section (P.187)
Scratch on the OPC drum
Replace drum cartridge
Static electricity on the documents (when copy-
ing)
ing)
Check the connection between the parts around CIS and earth
4
Dirty or Half Darkness
Background
Background
(P.136)
Failed drum cartridge
Replace drum cartridge
Dirty the pickup roller and the regist roller and
the feed roller and the eject roller and the heat
roller and the pressure roller
the feed roller and the eject roller and the heat
roller and the pressure roller
Clean the pickup roller and the regist roller and the feed roller
and the eject roller and the heat roller and the pressure roller
and the eject roller and the heat roller and the pressure roller
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Go to High Voltage Section (P.187)
Dirty the recording paper path
Clean the recording paper path
5
Black Print
(P.137)
Failed drum cartridge
Replace drum cartridge
Failed LSU
Go to LSU (Laser Scanning Unit) Section (P.53)
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Go to High Voltage Section (P.187)
Failed the main board
Go to Main Board Section (P.23)
Failed CIS (when copying)
Go to CIS Control Section (P.184)
6
Black Print
(P.137) OR
Light Print
(P.138)
Short toner
Supply toner
Failed drum cartridge
Replace drum cartridge
Life of drum cartridge is over
Replace drum cartridge
Dirty the reflecting mirror
Clean the reflecting mirror
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Go to High Voltage Section (P.187)
Failed the main board
Go to Main Board Section (P.23)
Failed CIS (when copying)
Go to CIS Control Section (P.184)
7
Black or White Point
(P.139)
(P.139)
Failed the developer roller (33mm pitch)
Replace toner cartridge
Failed the OPC drum (75mm pitch)
Replace drum cartridge
Failed the heat roller (79mm pitch)
Check the heat roller
Failed the high voltage power supply board
Go to High Voltage Section (P.187)
Too thick or too thin recording paper
Use the recording paper from 16lb to 28lb
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