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Technical Reference > Fixing System > Various Control Mechanisms > Fixing temperature control
Technical Reference > Fixing System > Various Control Mechanisms > Fixing temperature control
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Fixing temperature control
The fixing control circuit brings the fixing heater temperature at the targeted temperature.
MAINTH
/RLD-
FSRD+
/RLD+
FSRD-
FU1
TH802
RL901
Fuse
FU901
DC Controller
Fixing control circuit
FU1: Temperature fuse
TH802:Thermistor
Fixing
Heater
(H801)
Pressure
Roller
Fixing Film Unit
Fixing Assembly
Fixing heater
safety circuit
Fixing heater
drive circuit
Relay
drive
circui
The DC controller monitors the FIXING HEATER TEMPERATURE (MAINTH) signal and
sends the FIXING HEATER DRIVE (FSRD+, FSRD-) signals according to the detected
temperature. The fixing heater drive circuit controls the fixing heater depending on the signals
so that the heater remains at the targeted temperature.
F-2-17
1) Warm up temperature control
This control is to warm up the fixing heater until the fixing temperature reaches the required
fixing temperature.
Warm up temperature differs depending on the elapsed time from the previous print, paper
type or environment.
2) Print temperature control
This control is to keep the fixing sleeve temperature at a targeted temperature during printing.
Target temperature of fixing sleeve differs, depending on the paper type.
3) Paper interval temperature control
This control is to bring the fixing heater temperature lower than the fixing temperature at
paper interval to prevent the pressure roller from overheating during
continuous printing in low speed mode at paper interval.
Temperature during paper interval is changed corresponding to the distance and paper type.
Summary of Contents for Color imageRUNNER LBP5280
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Page 216: ...5 5 5 19 5 19 Troubleshooting Error Code Jam Code Troubleshooting Error Code Jam Code ...
Page 276: ... General Timing Chart General Circuit Diagram Signal Input Output List Appendix ...
Page 283: ...6 8 6 8 Appendix Backup Data Appendix Backup Data ...
Page 284: ...6 9 6 9 Appendix Backup Data Appendix Backup Data ...