Toshiba e-STUDIO500P manual Fuser assembly removal on page 4-26. If incorrect, replace

924.xx—Hot fuser service check

Error Code 923.xx, 924.xx, and 925.xx may display for a hot fuser failure.

CAUTION: .The fuser may be hot, use caution before removing or servicing.

CAUTION: There is a danger from hazardous voltage in the area of the printer where you are working. Unplug the printer before you begin, or use caution if the printer must receive power in order to perform the task.

Service tip: Set the Fuser Temperature to NORMAL before starting this service check. In Diagnostics mode, In Diagnostics mode, select EP SETUP, and Fuser Temp.

	FRU	Action
1	Fuser assembly	Check the thermistor cable for correct installation to J5 on the fuser
	Fuser to system board	card. If installed correctly, check for correct installation of J10 on the
		system board. If all cables are installed correctly, go to step 2.
	cable
2	Fuser top cover assembly	Turn the printer off and disconnect the thermistor cable from J5 on
	(thermistor/thermistor cable	the fuser board. Measure the resistance between the two pins on the
	assembly)	thermistor cable, if the resistance measures infinity (open circuit),
		replace the fuser top cover assembly.
3	Fuser to system board	Reconnect the thermistor cable to J5 on the fuser board. Disconnect
	cable.	the fuser to system board cable from J10 on the system board and
	System board	measure the resistance between J10-3 and J10-4 on the cable. If the
		resistance measures infinity (open circuit) check the continuity of pins
	Fuser assembly
		3 and 4 of the cable. If correct, replace the fuser assembly. See
		“Fuser assembly removal” on page 4-26. If incorrect, replace the
		fuser to system board cable.
		Note: If the error code still displays, replace the system board. See
		“System board and inner shield removal” on page 4-76.

925.xx—Hot fuser service check

Error Code 923.xx, 924.xx, and 925.xx may display for a hot fuser failure.

CAUTION: .The fuser may be hot, use caution before removing or servicing.

CAUTION: There is a danger from hazardous voltage in the area of the printer where you are working. Unplug the printer before you begin, or use caution if the printer must receive power in order to perform the task.

Service tip: Set the Fuser Temperature to NORMAL before starting this service check. In Diagnostics mode, In Diagnostics mode, select EP SETUP, and Fuser Temp.

	FRU	Action
1	Fuser lamp	If the fuser is 220 V machine a 115 V fuser may be installed.
		If the printer is not a 115 V model, then go to step 2.
		If the printer is a 220 V model, then check to make sure that the
		correct lamp is installed.
		Note: If the fuser lamp is replaced, allow the fuser to cool or a 925.xx
		error could be displayed.
2	AC power source	Check the AC power source to make sure it meets specifications. If
		the AC power source does not meet specifications, inform the
		customer. If it meets specifications, go to step 3.

Diagnostic information 2-91