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FC-22 TROUBLESHOOTING 4 - 64 January 2000 © TOSHIBA TEC
Cause/Defect area
Step
Check items Measures
Fuser lamp unlighted
Fuser roller pressure defect
Thermistor, LGC board
Paper
1 Contact defect at terminal point?
2 Fuser lamp open-circuited?
3 Pressure springs working properly?
4 Fuser roller temperature too low?
5 Paper dump?
Correct it.
Replace it.
Check/adjust pressure springs.
Check/correct related circuit.
Change paper.
(8) Poor fusing
Feeding direction