Toshiba e-STUDIO500P manual Go to 920.xx-Cold fuser

Service error codes (9xx.xx) (continued)

Error	Sub	Display text	Description		Action
code	codes
920	.01	Hot roll took too long to	•	Bad thermistor, circuit or cabling.	Go to “920.xx—Cold fuser
		heat up after	• Fuser not receiving sufficient AC		service check” on page 2-87.
		transitioning to new
				power.
		enhanced mode
			•	Poor supply line voltage.
		(standby control only.
		Fuser page count	•	Low wattage or incorrect lamp.
		between 0 and 99,999.
			•	Incorrect hot roll.
920	.02	Hot roll fell too far below	•	Bad thermistor, circuit or cabling.	Go to “920.xx—Cold fuser
		the desired temperature	• Fuser not receiving sufficient AC		service check” on page 2-87.
		while in standby. Fuser
				power.
		page between 0 and
			•	Poor supply line voltage.
		99,999.
			•	Low wattage or incorrect lamp.
			•	Incorrect hot roll.
920	.03	Hot roll too cool when	•	Bad thermistor, circuit or cabling.	Go to “920.xx—Cold fuser
		checking for slope	• Fuser not receiving sufficient AC		service check” on page 2-87.
		change in standby.
				power.
		Fuser page count
			•	Poor supply line voltage.
		between 0 and 99,999.
			•	Low wattage or incorrect lamp.
			•	Incorrect hot roll.
920	.04	Hot roll too cool when	•	Bad thermistor, circuit or cabling.	Go to “920.xx—Cold fuser
		heating to desired	•	Fuser not receiving sufficient AC	service check” on page 2-87.
		temperature after slope
				power.
		change (standby control
			•	Poor supply line voltage.
		only). Fuser page count
		between 0 and 99,999.	•	Low wattage or incorrect lamp.
			•	Incorrect hot roll.
920	.06	Fuser is not increasing	•	Fuser is not receiving AC power.	Go to “920.xx—Cold fuser
		in temperature even	• Poor supply line voltage.		service check” on page 2-87.
		though the lamp has
		been on for an extended
		time. Fuser page count
		between 0 and 99,999.
920.	.07	Fuser has been below	•	Bad thermistor, circuit, or cabling.	Go to “920.xx—Cold fuser
		the desired temperature	•	Very noisy thermistor signal.	service check” on page 2-87.
		for too long while media
			•	Fuser not receiving AC power.
		is in the nip. Fuser page
		count between 0 and	• Poor supply line voltage.
		99,999.
			•	Excessive load on the fuser.
			•	Low voltage or incorrect lamp.
			•	Abrupt change in temperature that
				has disrupted control.
			•	Incorrect hot roll.
920	.11	Hot roll took too long to	•	Bad thermistor, circuit, or cabling.	Go to “920.xx—Cold fuser
		heat up after	•	Very noisy thermistor signal.	service check” on page 2-87.
		transitioning to new
			•	Fuser not receiving AC power.
		enhanced mode. Fuser
		page count between	• Poor supply line voltage.
		100,000 and 199,999.
			•	Low voltage or incorrect lamp.
			•	Incorrect hot roll.

Diagnostic information 2-9