Toshiba e-STUDIO500P manual Printer does not recognize the paper size selected

The printer does not recognize the paper size selected

	FRU	Action
1	Back restraint	Check all the paper size parts for damage or broken parts. make sure
	Side restraint	the parts operate correctly. If a problem is found, repair as necessary.
	Snap-in plate	If no problem is found, go to step 2.
	Autosize slider
	Autosize finger
2	Switch activate spring	Make sure the switch activate spring is not bent or broken. Replace
	Paper size sending board	the spring if damaged. If the spring is not damaged, go to step 3.
3	System board	Set the tray for the paper size that is not recognized and install the
	ITC cable	tray in the printer. Select the paper size and corresponding paper
		switch from table, below.
		Pin	Signal	Static	Static with paper tray in and set to: (V dc)
		J26		tray out
				(V dc)	Letter	Legal	A4	Exec	B5	A5
		1	PSIZE2	+3.3	0	0	+3.3	+3.3	0	+3.3
		2	Ground	0	0	0	0	0	0	0
		3	PSIZE1	+3.3	+3.3	+3.3	0	0	0	+3.3
		4	PSIZE3	+3.3	0	+3.3	+3.3	0	+3.3	0
		5				N/A
		6				N/A
		7				N/A
		8	+3.3	+3.3	+3.3	+3.3	+3.3	+3.3	+3.3	+3.3
		9				N/A
		10				N/A
		If the voltage on J26 does not change, go to step 4. If the voltage
		changes, recheck the printer. If Tray 1Missing is still displayed,
		replace the system board assembly.
4	System board	Ground the appropriate pin on connector J26 on the system board.
		Tray 1 Missing should not be displayed. If it is not displayed, go
		to step 5. If it still displays, replace the system board assembly.
5	Autocomp cable	Check continuity of the autocomp cable. If correct, replace the ITC
		assembly. If incorrect, replace the autocomp cable.

Diagnostic information 2-115