Toshiba e-STUDIO5540C Service Manual page 305

8.5.9 Poor fusing
Cause/Section Step
Electric power/ 1
control
abnormal
2
2
3
4
5
Pressure 6
between fuser
belt and
pressure roller
improper
fuser belt 7
temperature
Developer 8
material and
toner
Paper 9
10
11
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
ERROR CODE and TROUBLESHOOTING
Fig.8-16
Check item
Is the connector in proper contact
with the equipment?
Is the IH control circuit working
properly?
Is the IH control circuit (switching
regulator) working properly?
Are the connectors on the LGC board
and joint connectors connected
properly?
Is the LGC board normal?
Is the harness connected with the
LGC board short circuited or open
circuited?
Are the pressure springs working
properly?
Is the temperature of fuser belt too
low?
Using the specified developer
material and toner?
Is the paper damp?
Is the paper type corresponding to its
mode?
Using the recommended paper?
Correct it.
Replace the IH board.
Replace the switching regulator.
Reconnect them.
Replace the LGC board.
Replace the harness.
Check/adjust the pressure springs.
Check/correct the setting value of
fuser belt temperature.
Clean or replace the thermopiles.
Check/correct the related circuit.
Use the specified developer material
and toner.
Change the paper.
Use the proper type of paper or select
the proper mode.
Use the recommended paper.
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Measures