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KX-MB1500UC/KX-MB1520UC/KX-MB1530UC
12.3.5. Simplified Troubleshooting Guide
12.3.5.1. Printing
No.
Symptom
Cause
Countermeasure
1
Ghost Image (P.136)
Failed toner cartridge
Replace toner 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.190)
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 24lb
2
Dark or White Vertical
Line (P.137)
Line (P.137)
Dirty the cover glass or the reflecting mirror
Clean the cover glass and the reflecting mirror
Dust on the path of the laser beam
Clean the path of the laser beam
Failed toner cartridge
Replace toner 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.56)
3
Dark or White Horizontal
Line (P.138)
Line (P.138)
Failed toner cartridge
Replace toner cartridge
Failed the gear
Check the gear
Failed the engine motor
Check the motor
Failed the charge roller (32mm pitch)
Press the key (Menu
#481OK)
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Go to High Voltage Section (P.190)
Scratch on the OPC drum
Replace toner 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 (P.139)
Background (P.139)
Failed toner cartridge
Replace toner 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.190)
Dirty the recording paper path
Clean the recording paper path
5
Black Print (P.140)
Failed toner cartridge
Replace toner cartridge
Failed LSU
Go to LSU (Laser Scanning Unit) Section (P.56)
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Go to High Voltage Section (P.190)
Failed the main board
Go to Main Board Section (P.18)
Failed CIS (when copying)
Go to CIS Control Section (P.186)
6
Black Print (P.140) OR
Light Print (P.141)
Light Print (P.141)
Short toner
Supply toner
Failed toner cartridge
Replace toner cartridge
Life of toner cartridge is over
Replace toner cartridge
Dirty the cover glass or the reflecting mirror
Clean the cover glass and 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.190)
Failed the main board
Go to Main Board Section (P.18)
Failed CIS (when copying)
Go to CIS Control Section (P.186)
7
Black or White Point
(P.142)
(P.142)
Failed the developer roller (33mm pitch)
Replace toner cartridge
Failed the OPC drum (75mm pitch)
Replace toner cartridge
Failed the heat roller (63mm pitch)
Check the heat roller
Failed the high voltage power supply board
Go to High Voltage Section (P.190)
Too thick or too thin recording paper
Use the recording paper from 16lb to 24lb
