November 2003 © TOSHIBA TEC 5 - 115 e-STUDIO3511/4511 TROUBLESHOOTING
(8) Poor fusing
Feeding direction
Cause/Section
IH electric power/
control abnormal
Pressure between
fuser belt and pressure
roller improper
Fuser roller
temperature
Developer material
and toner
Paper
Step
1
2
3
4
5
6
7
8
9
10
11
Check items
Check if the connector contacts properly.
Is the IH coil shorted or broken?
Is the IH control board normal?
Are the connectors on the LGC board
and joint connectors connected prop-
erly?
Is the LGC board normal?
Is the harness between the LGC board
and IH board short circuited or open
circuited?
Are the pressure springs working
properly?
Is the temperature of fuser roller 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?
Measures
Correct it.
Replace the IH coil or IH control board.
Reconnect them.
Replace the LGC board.
Replace the harness.
Check/adjust the pressure springs.
Check/correct the setting value of fuser
roller temperature.
Clean or replace the thermistors.
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.
Fig. 5-209