Ricoh M080, Руководство по обслуживанию

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Service Call Conditions
SM Appendix 2-5 M080
Appe
ndix:
T
rouble
-
shooting
Guide
543 A
Fusing overheat error – software
ƒ
Fusing thermistor defective
ƒ
Power supply board defective
The fusing temperature was detected
higher than 235°C for longer than 200
ms.
544 A
High temperature detection: Hard
ƒ
Defective thermister
ƒ
Defective fusing unit, PSU,
engine board
The thermister detects a high
temperature signal.
545 A
Fusing lamp remains on
ƒ
Fusing thermistor defective
ƒ
Power supply board defective
ƒ
Defective connection of the
fusing unit
The fusing lamp remained on longer
than 12 sec. after the fusing unit
reached optimum temperature and the
main motor switched off.
546 A
Unstable fusing temperature
ƒ
Fusing thermistor defective
ƒ
Power supply board defective
ƒ
Defective connection of the
fusing unit
During standby, the fusing temperature
went below 60°C twice or went above
60°C three times within 500 ms.
A 60°C increase in fusing temperature
was detected at five 1-sec. intervals
within 60 sec. before reaching fusing
temperature.