Description: • If the temperature of the fusing roller when the fusing unit begins warming up does not remain increased by 5°C for 1 second within the 40 to 50 seconds after the fusing roller begins warming up
Remedy: 1 Is there a short circuit at TH1? (between CN18-1 and -2 on the thermistor) YES Clean TH1. HEATER 2-D Replace the fusing unit. NO Replace PU. Replace PWB-AP.
Code: 1B
Description: • If the temperature of the fusing roller when the fusing unit begins warming up does not remain increased by 5°C for 1 second within the 40 to 50 seconds after the fusing roller begins warming up
Remedy: 1 Is there a short circuit at TH1? (between CN18-1 and -2 on the thermistor) YES Clean TH1. HEATER 2-D Replace the fusing unit. NO Replace PU. Replace PWB-AP.
Code: 21
Description: • If a overhead projector transparency is not detected