Toshiba e-STUDIO500P manual Fuser solenoid service check, Assembly. See Fuser assembly removal on

Fuser solenoid service check

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: Try changing the envelope enhance level setting. A different setting may correct the problem.

Note: Check the fuser envelope conditioner solenoid adjustment as described in the adjustment section “Fuser solenoid adjustment” on page 4-2.

	FRU	Action
1	Fuser envelope conditioner	Observe the operation of the fuser solenoid by removing the redrive
	solenoid	assembly. Check for proper mechanical operation of the solenoid and
		associated hardware, link, and so on. If correct, check the resistance
		of the solenoid between J4-1 and J4-2 on the fuser control board.
			1	1
			J2
				J4
			1	1	J5
			J1	1
				J6
		The resistance measures between 5 ohms and 10 ohms. If incorrect,
		replace the fuser assembly. If correct, go to step 2.
2	System board	Measure the voltage at the +50 V dc test point on the system board.
		The voltage should measure approximately +50 V dc. If incorrect, go
		to step 3. If incorrect, go to step 4.
3	LVPS	Measure the voltage at CN2-18 on the LVPS. The voltage should
		measure approximately +50 V dc. If incorrect, replace the LVPS
		assembly. If correct, replace the system board. If this does not fix the
		problem, replace the interconnect card assembly.
4	Fuser board to system	Make sure the cable is connected properly to the system board and
	board cable	fuser control board. Reconnect the cable, if necessary. If the cable is
		connected correctly, go to step 5.
5	Fuser assembly	If no problems were found in steps 1 through 4, replace the fuser
		assembly. See “Fuser assembly removal” on page 4-26.

2-94Service Manual