3. ThermoswitchWhen the temperature of the Fixing Heater rises abnormally and the Thermoswitch (TP1) exceeds a certain temperature,the contact of the Thermoswitch is disconnected to shut down the power supply to the Fixing Assembly.● Fixing Assembly failure detectionWhen the machine is under the following conditions, the DC Controller shuts down the power supply to the Fixing Assembly andnotifies an error.1. Fixing temperature rising errorTemperature of the thermistor does not rise although a specified period of time has passed since the heater was turned ON.• E000-0000: Temperature of the Main Thermistor did not become a certain temperature although the specified time hadpassed2. Abnormally high fixing temperature detectionWhen a Thermistor reaches a certain temperature or higher, it is judged as abnormal high temperature for the thermistor.• E001-0000: The Main Thermistor detected a temperature higher than a certain temperature.• E001-0001: The Sub Thermistor detected a temperature higher than a certain temperature.3. Abnormally low fixing temperature detectionAfter it was detected that the temperature of the Fixing Main Thermistor was 100 deg C or higher while the Fixing Heaterwas ON, a temperature lower than a certain temperature was detected.• E003-0000: Temperature of the Main Thermistor was lower than a certain temperature although a specified period oftime has passed since the heater was turned ON.• E003-0001: Temperature of the Sub Thermistor 1 was lower than a certain temperature although a specified period oftime has passed since the heater was turned ON.4. Fixing drive circuit errorWhen the DC Controller cannot detect a specific frequency, a fixing drive circuit failure is judged to have occurred.• E004-0000: Error in either the Fixing Heater or the Fixing Motor5. Fixing Assembly detectionThe printer detects the Fixing Assembly when the main power is turned on and when operation starts.The DC Controller monitors the Fixing Assembly detection signal to detect the presence of the Fixing Assembly.Consequently, when the DC Controller determines that the Fixing Assembly is not connected, it outputs a warning message.6. Power supply type detectionThis machine does not perform detection of the fixing type based on power supply differences.■ Fixing Life DetectionThe life of the Fixing Assembly is detected to prevent fixing errors due to the Fixing Assembly having reached the end of life.This machine has a counter in the controller to determine the life of the Fixing Assembly.• SERVICEMODE > COUNTER GR. > FIXER COUNTERWhen the above counter value reaches 225,000 sheets, the following message is displayed on the Control Panel and the alarmcode is recorded in the log.Control Panel display: E5 Prepare fixing unit.Alarm code: 06-0002 Fixing Assembly warning alarm2. Technical Explanation (Device)35
