Panasonic KX-FLM652CX Service Manual page 87

6.6.5. SIMPLIFIED TROUBLESHOOTING GUIDE
6.6.5.1. PRINTING
No. Symptom
1 GHOST IMAGE (P.96)
2 DARK OR WHITE
VERTICAL LINE (P.97)
3 DARK OR WHITE
HORIZONTAL LINE (P.98)
4 DIRTY OR HALF
DARKNESS
BACKGROUND (P.99)
5 BLACK PRINT (P.100)
6 LIGHT PRINT (P.101)
7 BLACK DENSITY
LIGHT OR
UNEVEN(P.102)
8 BLANK PRINT (P.103)
9 BLACK OR WHITE POINT
(P.103)
Cause
Failed drum unit
Failed transfer unit
Failed the high-voltage terminal
Failed the high voltage power supply board
Failed fuser unit
Failed the power supply board
Too thick or too thin recording paper
Dirty the lower glass or the reflecting mirror
Dust on the path of the laser beam
Dust on the developing roller
Failed the heat roller or the pressuizedr roller Check the heat roller and the pressurized roller
Failed LSU
Failed drum unit
Failed the gear
Failed the engine motor
Failed the high-voltage terminal
Failed the high voltage power supply board
Scratch on the OPC drum
Static electricity on the documents (when
copying)
Failed drum unit
Life of drum unit is over
Dirty 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
Failed the high voltage power supply board
Dirty the recording paper path
Failed drum unit
Failed LSU
Failed the high-voltage terminal
Failed the high voltage power supply board
Failed the digital board
Failed CIS (when copying)
Short toner
Failed drum unit
Life of drum unit is over
Dirty the lower glass or the reflecting mirror
Failed the high-voltage terminal
Failed the high voltage power supply board
IS Short toner
Failed drum unit
Life of drum unit is over
Dirty the lower glass or the reflecting mirror
Failed the high-voltage terminal
Failed the high voltage power supply board
Failed drum unit
Failed LSU
Failed the high-voltage terminal
Failed the high voltage power supply board
Failed the digital board
Failed CIS (when copying)
Failed the developer roller (31.4mm pitch)
Failed the OPC drum (75.4mm pitch)
Failed the heat roller (62.8mm pitch)
Failed the charge blush (21mm pitch)
Failed the high voltage power supply board
Too thick or too thin recording paper
Replace drum unit
Check the transfer roller and spring
Check the high-voltage terminal
Go to HIGH VOLTAGE SECTION (P.148)
Check the heat roller and the pressurized roller and the spring
and the heat lamp and the thermistor
Go to POWER SUPPLY BOARD SECTION (P.152)
Use the recording paper from 60g/m
Clean the lower glass and the reflecting mirror
Clean the path of the laser beam
Replace drum unit
Go to LSU SECTION (P.145)
Replace drum unit
Check the gear
Go to ENGINE MOTOR (P.143)
Check the high-voltage terminal
Go to HIGH VOLTAGE SECTION (P.148)
Replace drum unit
Check the connection between the parts around CIS and earth
Replace drum unit
Replace drum unit
Clean the pickup roller and the regist roller and the feed roller
and the eject roller and the heat roller and the pressure roller
Check the high-voltage terminal
Go to HIGH VOLTAGE SECTION (P.148)
Clean the recording paper path
Replace drum unit
Go to LSU SECTION (P.145)
Check the high-voltage terminal
Go to HIGH VOLTAGE SECTION (P.148)
Check the digital board
Go to CIS (Contact Image Sensor) SECTION (P.146)
Supply toner
Replace drum unit
Replace drum unit
Clean the lower glass and the reflecting mirror
Check the high-voltage terminal
Go to HIGH VOLTAGE SECTION (P.148)
Supply toner
Replace drum unit
Replace drum unit
Clean the lower glass and the reflecting mirror
Check the high-voltage terminal
Go to HIGH VOLTAGE SECTION (P.148)
Replace drum unit
Go to LSU SECTION (P.145)
Check the high-voltage terminal
Go to HIGH VOLTAGE SECTION (P.148)
Check the digital board
Go to CIS (Contact Image Sensor) SECTION (P.146)
Replace drum unit
Replace drum unit
Check the heat roller
Replace drum unit
Go to HIGH VOLTAGE SECTION (P.148)
Use the recording paper from 60g/m
87
Countermeasure
2 2
to 90g/m
2 2
to 90g/m
KX-FLM652CX