6) 100: fuser temperature low, 7) 200: fuser overheat, T-16 – Konica Minolta PagePro 1390 MF User Manual
Page 126
T-16
(6)
100: Fuser temperature low
<Detection Timing>
<Troubleshooting Procedure>
(7)
200: Fuser overheat
<Detection Timing>
<Troubleshooting Procedure>
Description
• The temperature detected by the Thermistor remains lower than the set temperature
continuously for a predetermined period of time while the fusing temperature control is
being provided. (The set temperatures are as follows: 140 °C during a print mode at 600
dpi; 70 °C during the standby mode.)
Relevant Electrical Parts
Fusing Unit
Thermistor (TH1)
Mechanical Control Board (PWB-A)
Thermostat (TS1)
Power Unit (PU1)
Step
Action
Ref. Page
WIRING DIAGRAM
Control Signal
Location
(Electrical Parts)
1
Replace the Thermistor (TH1).
–
–
2
Replace the Fusing Unit.
☞ E-8
–
–
3
Replace PWB-A.
–
–
4
Replace the Power Unit (PU1).
–
–
Description
• The temperature detected by the Thermistor remains higher than 235 °C for a predeter-
mined period of time while the fusing temperature control is being provided.
Relevant Electrical Parts
Fusing Unit
Thermistor (TH1)
Mechanical Control Board (PWB-A)
Thermostat (TS1)
Power Unit (PU1)
Step
Action
Ref. Page
WIRING DIAGRAM
Control Signal
Location
(Electrical Parts)
1
Replace the Thermistor (TH1).
–
–
2
Replace the Fusing Unit.
☞ E-8
–
–
3
Replace PWB-A.
–
–
4
Replace the Power Unit (PU1).
–
–