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KX-MB1520FX7/KX-MB1520FX8/KX-MB1520FXW/KX-MB1530FX7/KX-MB1530FXW
12.3.5. Simplified Troubleshooting Guide
12.3.5.1. Printing
No.
Symptom
Cause
Countermeasure
1
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
Failed fuser unit
Check the heat roller and the pressurized roller and the spring
and the heat lamp and the thermistor
Too thick or too thin recording paper
Use the recording paper from 16lb to 24lb
2
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
3
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
#
4
8
1
OK)
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Go to
Scratch on the OPC drum
Replace toner cartridge
Static electricity on the documents (when copy-
ing)
Check the connection between the parts around CIS and earth
4
Dirty or Half Darkness
Background
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
Clean the pickup roller and the regist roller and the feed 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
Dirty the recording paper path
Clean the recording paper path
5
Failed toner cartridge
Replace toner cartridge
Failed LSU
Go to
LSU (Laser Scanning Unit) Section
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Go to
Failed the main board
Go to
Failed CIS (when copying)
6
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
Failed the main board
Go to
Failed CIS (when copying)
7
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
Too thick or too thin recording paper
Use the recording paper from 16lb to 24lb
Summary of Contents for KX-MB1520FX7
Page 52: ...52 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 6 10 3 5 Waveform ...
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Page 75: ...75 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW wave form ...
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Page 100: ...100 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 10 1 2 Button Code Table ...
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Page 141: ...141 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 8 3 Skew ...
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Page 175: ...175 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Toner detection flow ...
Page 188: ...188 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 2 CHG 3 TRA ...
Page 189: ...189 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 4 DEV DC ...
Page 190: ...190 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 5 DEV AC ...
Page 191: ...191 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 6 TRA ...
Page 218: ...218 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 10 How to Remove LVPS ...
Page 236: ...236 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 24 7 Fuser section ...
Page 255: ...255 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 15 6 1 NG Example ...
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