Xerox WorkCentre 5855
- Code: 310-340-00, 310-350-00, 310-360-00, 310-365-00, 310-380-00
- Description: Fuser Over Temperature RAP 310-315-00 The difference between 2 consecutive thermistor readings exceeds a given value. 310-320-00 During standby or run mode, the thermistor reading is not within the target temperature range. 310-321-00 Over temperature during standby mode, the thermistor reading is not within the target temperature range 310-323-00 Over temperature during run mode, the thermistor reading is not within the target temperature range. 310-340-00 Fuser temperature sensor A reading monitors above its normal operating temperature. 310-350-00 The hardware comparator detects a fuser reading greater than 240 degrees centigrade or a short circuit thermistor. 310-360-00 Fuser temperature sensor B reading is greater than the normal operating temperature. 310-365-00 The fuser module is above the recommended operating temperature. 310-380-00 The fuser delta value between the temperature sensors A and B is to high.
- Remedy: • If there are number of 310-321-00 fault codes in the fault history of the machine, check if the customer has been running transparency jobs or nominal papers at card stock settings. This fault can be generated when the temperature changes between the standby and run. This is a normal function of the machine and should not effect the customer operation. • Check that the fuser temperature NVM settings in dC131, are set to default. Refer to NVM location 710-001 though to 710-093. Ensure that the values are set to the default level. If the values are not at default then, 10-320-00, 10-321, 10-340-00 and 10-360-00 may appear in the fault log. • Check the fuser module connector and fuser connector assembly for damage. • Check that the photoreceptor fan, PL 90.25 Item 7 is working correctly and that the direction of air flow is into the machine, refer to the 390C Photoreceptor Fan RAP. Check that the intake grille at the rear of the machine is not blocked and there is not a heat source such as a radiator immediately behind the machine. Check that the photoreceptor duct, PL 90.25 Item 5 and the lower duct, PL 90.25 Item 8 are correctly installed.
Switch off the machine, then switch on the machine, GP 14. The display shows Ready to Copy. Y↓N→Refer to. Go to Flag 1. The voltage at the temperature sensors A and B should be 2.9 volts when the sensors are cold. In standby mode the voltage should be 0.78 to 0.98 volts. Refer to: • P/J35, IOT PWB. • 301D +3.3 V Distribution RAP. • 301B 0V Distribution RAP Before new components are installed, restore the NVM values to default. Perform the following as necessary: • Install a new fuser module, (45-55 ppm) PL 10.8 Item 1 or (65-90 ppm) PL 10.10 Item 1. • 301L LVPS Checkout RAP. • OF7 IOT PWB Diagnostics RAP. Perform SCP 5 Final Actions.
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