Description: Faulty Model Setting
• Model Setting of Adjust available from the Service mode is incorrectly set.
Remedy:
Code: C0500
Description: Warm-up failure
• The surface temperature of the Fusing Roller does not reach a given level even after the lapse of a given period of time during a warm-up cycle. From room temperature to 100°C: 35 sec. From 100°C to 140°C: 25 sec. From 140°C to the completion of the warm-up cycle: 20 sec.
Remedy: 1 Check that the Fusing Roller Heater Lamp (H1) turns ON when the Power Switch is turned ON and correct or replace the lamp as necessary. 2 Check that the Fusing Roller Sub Heater Lamp (H2) turns ON when the Power Switch is turned ON and correct or replace the lamp as necessary. 3 Check the Fusing Roller Thermostat (TS1) for operation. <Check procedure> Check the resistance of TS1. TS1 is open-circuited if its resistance is infinity. F-2 4 Check the Fusing Unit Interlock Switch (S2) for operation. <Check procedure> Check continuity across the following terminals when S2 is ON. • Across S2-1A and S2-1B • Across S2-2A and S2-2B E-16 5 Check the Fusing Roller Thermistor (TH1) and Fusing Roller Sub Thermistor (TH2) for installation and correct or clean as necessary. 6 Check the Fusing Roller Thermistor (TH1) for operation. <Check procedure> Disconnect CN15 (4P) and check the resistance across CN15-2 and 3 on the Thermistor side. TH1 is open-circuited if the resistance is infinity. 7 Check the Fusing Roller Sub Thermistor (TH2) for operation. <Check procedure> Disconnect CN22 (4P) and check the resistance across CN22-2 and 3 on the Thermistor side. TH2 is open-circuited if the resistance is infinity. D-2 8 Check the Fusing Roller Heater Lamp (H1) for continuity and correct or replace as necessary. 9 Check the Fusing Roller Sub Heater Lamp (H2) for continuity and correct or replace as necessary. 10 Change PU1. 11 Change PWB-A.
Code: C0500
Description: Warm-up failure (for the model having two Fusing Roller Heater Lamps)
• The Fusing Roller Thermistor does not detect a predetermined temperature within 30 sec. after a warm-up cycle has been started and thus the warm-up cycle is not completed. • The surface temperature of the Fusing Roller does not reach a given level even after the lapse of a given period of time during a warm-up cycle. From room temperature to 60°C: 4 sec. From 60°C to 100°C: 2 sec. From 100°C to 130°C: 1 sec. From 130°C to 155°C: 0.5 sec.
Remedy: 1 Check that the Fusing Roller Heater Lamp (H1) turns ON when the Power Switch is turned ON and correct or replace the lamp as necessary. 2 Check that the Fusing Roller Sub Heater Lamp (H2) turns ON when the Power Switch is turned ON and correct or replace the lamp as necessary. 3 Check the Fusing Roller Thermostat (TS1) for operation. <Check procedure> Check the resistance of TS1. TS1 is open-circuited if its resistance is infinity. F-2 4 Check the Fusing Unit Interlock Switch (S2) for operation. <Check procedure> Check continuity across the following terminals when S2 is ON. • Across S2-1A and S2-1B • Across S2-2A and S2-2B E-16 5 Check the Fusing Roller Thermistor (TH1) and Fusing Roller Sub Thermistor (TH2) for installation and correct or clean as necessary. 6 Check the Fusing Roller Thermistor (TH1) for operation. <Check procedure> Disconnect CN15 (4P) and check the resistance across CN15-2 and 3 on the Thermistor side. TH1 is open-circuited if the resistance is infinity. 7 Check the Fusing Roller Sub Thermistor (TH2) for operation. <Check procedure> Disconnect CN22 (4P) and check the resistance across CN22-2 and 3 on the Thermistor side. TH2 is open-circuited if the resistance is infinity. D-2 8 Check the Fusing Roller Heater Lamp (H1) for continuity and correct or replace as necessary. 9 Check the Fusing Roller Sub Heater Lamp (H2) for continuity and correct or replace as necessary. 10 Change PU1. 11 Change PWB-A.
Code: C0501
Description: Warm-up failure 2 (for the model having two Fusing Roller Heater Lamps)
• The Fusing Roller Sub Thermistor does not detect a predetermined temperature within 30 sec. after a warm-up cycle has been started and thus the warm-up cycle is not completed. • The surface temperature of the Fusing Roller does not reach a given level even after the lapse of a given period of time during a warm-up cycle. From room temperature to 60°C: 7 sec. From 60°C to 100°C: 2 sec. From 100°C to 130°C: 1 sec. From 130°C to 155°C: 0.5 sec.
Remedy: 1 Check that the Fusing Roller Heater Lamp (H1) turns ON when the Power Switch is turned ON and correct or replace the lamp as necessary. 2 Check that the Fusing Roller Sub Heater Lamp (H2) turns ON when the Power Switch is turned ON and correct or replace the lamp as necessary. 3 Check the Fusing Roller Thermostat (TS1) for operation. <Check procedure> Check the resistance of TS1. TS1 is open-circuited if its resistance is infinity. F-2 4 Check the Fusing Unit Interlock Switch (S2) for operation. <Check procedure> Check continuity across the following terminals when S2 is ON. • Across S2-1A and S2-1B • Across S2-2A and S2-2B E-16 5 Check the Fusing Roller Thermistor (TH1) and Fusing Roller Sub Thermistor (TH2) for installation and correct or clean as necessary. 6 Check the Fusing Roller Thermistor (TH1) for operation. <Check procedure> Disconnect CN15 (4P) and check the resistance across CN15-2 and 3 on the Thermistor side. TH1 is open-circuited if the resistance is infinity. 7 Check the Fusing Roller Sub Thermistor (TH2) for operation. <Check procedure> Disconnect CN22 (4P) and check the resistance across CN22-2 and 3 on the Thermistor side. TH2 is open-circuited if the resistance is infinity. D-2 8 Check the Fusing Roller Heater Lamp (H1) for continuity and correct or replace as necessary. 9 Check the Fusing Roller Sub Heater Lamp (H2) for continuity and correct or replace as necessary. 10 Change PU1. 11 Change PWB-A.
Code: C0510
Description: Fusing failure (abnormally low fusing temperature)
• The temperature detected by the Fusing Roller Thermistor remains lower than 120°C (105°C for the model having two Fusing Roller Heater Lamps) for a given period of time during the standby state. • The temperature detected by the Fusing Roller Thermistor remains lower than 120°C (105°C for the model having two Fusing Roller Heater Lamps) for a given period of time during a print cycle.
Remedy: 1 Check that the Fusing Roller Heater Lamp (H1) turns ON when the Power Switch is turned ON and correct or replace the lamp as necessary. 2 Check that the Fusing Roller Sub Heater Lamp (H2) turns ON when the Power Switch is turned ON and correct or replace the lamp as necessary. 3 Check the Fusing Roller Thermostat (TS1) for operation. <Check procedure> Check the resistance of TS1. TS1 is open-circuited if its resistance is infinity. F-2 4 Check the Fusing Unit Interlock Switch (S2) for operation. <Check procedure> Check continuity across the following terminals when S2 is ON. • Across S2-1A and S2-1B • Across S2-2A and S2-2B E-16 5 Check the Fusing Roller Thermistor (TH1) and Fusing Roller Sub Thermistor (TH2) for installation and correct or clean as necessary. 6 Check the Fusing Roller Thermistor (TH1) for operation. <Check procedure> Disconnect CN15 (4P) and check the resistance across CN15-2 and 3 on the Thermistor side. TH1 is open-circuited if the resistance is infinity. 7 Check the Fusing Roller Sub Thermistor (TH2) for operation. <Check procedure> Disconnect CN22 (4P) and check the resistance across CN22-2 and 3 on the Thermistor side. TH2 is open-circuited if the resistance is infinity. D-2 8 Check the Fusing Roller Heater Lamp (H1) for continuity and correct or replace as necessary. 9 Check the Fusing Roller Sub Heater Lamp (H2) for continuity and correct or replace as necessary. 10 Change PU1. 11 Change PWB-A.
Code: C0511
Description: Fusing failure (abnormally low fusing temperature 2)
• The temperature detected by the Fusing Roller Sub Thermistor remains lower than 105°C for a given period of time during the standby state. • The temperature detected by the Fusing Roller Sub Thermistor remains lower than 105°C for a given period of time during a print cycle.
Remedy: 1 Check that the Fusing Roller Heater Lamp (H1) turns ON when the Power Switch is turned ON and correct or replace the lamp as necessary. 2 Check that the Fusing Roller Sub Heater Lamp (H2) turns ON when the Power Switch is turned ON and correct or replace the lamp as necessary. 3 Check the Fusing Roller Thermostat (TS1) for operation. <Check procedure> Check the resistance of TS1. TS1 is open-circuited if its resistance is infinity. F-2 4 Check the Fusing Unit Interlock Switch (S2) for operation. <Check procedure> Check continuity across the following terminals when S2 is ON. • Across S2-1A and S2-1B • Across S2-2A and S2-2B E-16 5 Check the Fusing Roller Thermistor (TH1) and Fusing Roller Sub Thermistor (TH2) for installation and correct or clean as necessary. 6 Check the Fusing Roller Thermistor (TH1) for operation. <Check procedure> Disconnect CN15 (4P) and check the resistance across CN15-2 and 3 on the Thermistor side. TH1 is open-circuited if the resistance is infinity. 7 Check the Fusing Roller Sub Thermistor (TH2) for operation. <Check procedure> Disconnect CN22 (4P) and check the resistance across CN22-2 and 3 on the Thermistor side. TH2 is open-circuited if the resistance is infinity. D-2 8 Check the Fusing Roller Heater Lamp (H1) for continuity and correct or replace as necessary. 9 Check the Fusing Roller Sub Heater Lamp (H2) for continuity and correct or replace as necessary. 10 Change PU1. 11 Change PWB-A.