Toshiba e-STUDIO500P manual Service error codes

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

Error	Sub	Display text	Description		Action
code	codes
92	.52	Hot roll fell too far below	•	Bad thermistor, circuit, or cabling.	Go to “920.xx—Cold fuser
		desired temperature	•	Noisy thermistor signal.	service check” on page 2-87.
		while printing. Fuser
			•	Fuser not receiving AC power.
		page count more than
		500,000.	• Poor supply line voltage.
			•	Low voltage or incorrect lamp.
			•	Incorrect hot roll.
920	.53	Hot roll too cool while	•	Bad thermistor, circuit, or cabling.	Go to “920.xx—Cold fuser
		checking for slope	•	Noisy thermistor signal.	service check” on page 2-87.
		change. Fuser page
			•	Fuser not receiving AC power.
		count more than
		500,000.	• Poor supply line voltage.
			•	Low voltage or incorrect lamp.
			•	Incorrect hot roll.
920	.54	Hot roll too cool when	•	Bad thermistor, circuit, or cabling.	Go to “920.xx—Cold fuser
		heating to desired	•	Noisy thermistor signal.	service check” on page 2-87.
		temperature after slope
			•	Fuser not receiving AC power.
		change. Fuser page
		count more than	• Poor supply line voltage.
		500,000.
			•	Low voltage or incorrect lamp.
			•	Incorrect hot roll.
920	.56	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 count more
		than 500,000.
920	.57	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 more than	• Poor supply line voltage.
		500,000.
			•	Excessive load on the fuser.
			•	Low voltage or incorrect lamp.
			•	Incorrect hot roll.
			•	Abrupt change in temperatures that
				has disrupted control.
920	.91	Hot roll took too long to	•	Bad thermistor, circuit, or cabling.	Go to “920.xx—Cold fuser
		heat up after	•	Fuser not receiving AC power.	service check” on page 2-87.
		transitioning to new
			•	Poor supply line voltage.
		enhanced mode. Fuser
		page count not	•	Low voltage or incorrect lamp.
		available.
			•	Incorrect hot roll.

2-14Service Manual