Description: • If the unit does reach 80° C within 100 seconds from the time that warm-up begins • If the temperature of the fusing roller falls below 70° C in 10 seconds during standby • If the temperature of the fusing roller increases to 220°C in 0.1 second
Remedy: 1 Check for continuity at H1 and H2. NO Replace H1 and H2. 2-B, 2-C 2 Check for continuity at TS1. NO Replace TS1. 2-C. 3 Is the resistance at TH1 infinite? (between CN18-1 and -2 on the thermistor) YES Clean TH1 or replace the fusing unit. HEATER 2-D NO Replace PU. Replace PWB-A.1
Code: 19
Description: • If the unit does reach 80° C within 100 seconds from the time that warm-up begins • If the temperature of the fusing roller falls below 70° C in 10 seconds during standby • If the temperature of the fusing roller increases to 220°C in 0.1 second
Remedy: 1 Check for continuity at H1 and H2. NO Replace H1 and H2. 2-B, 2-C 2 Check for continuity at TS1. NO Replace TS1. 2-C. 3 Is the resistance at TH1 infinite? (between CN18-1 and -2 on the thermistor) YES Clean TH1 or replace the fusing unit. HEATER 2-D NO Replace PU. Replace PWB-A.1