Description: Low fixing temperature abnormality
The output voltage of TH1 (fixing temperature /1) is detected as abnormality low at the comparator circuit (less than -6°C).
Causes: PRCB (printer control board) DCPS (DC power supply unit) L2 (fixing heater lamp/1) L3 (fixing heater lamp/2) TH1 (fixing temperature /1) TH2 (fixing temperature /2)