Xerox Phaser 3120 specifications Self Test Button, Functi on Enter Up/ Down Stop Remar k

TROUBLESHOOTING

No.	Functi on	Enter		Up/ Down				Stop	Remar k
00	Motor	Motor Run						Motor Stop
01	MHV	Mhv On						Mhv Off	-1550V
02	THV(-)	Thv Negative On						Thv Negative Off
03	THV(+)	Thv On						Thv Off	+1300V
04	DEV	Dev On	Supply				DEV	Dev Off
			0 : -630V			0	: -430V
05	LSU	LSU Run	On		Off		Ready	LSU Stop
06	Pic kUp	Pickup On						Pickup Off
07	PEmpty		Paper Empty
08	Sensor				Ex it		Feed
09	Cover		Cover Open
10	Fus er	Fuser On						Fuser Off
11	HotBur n	HotBurn On
12	Clean Print	Clean Printing
13	Thv
	Refer ence		low	adequate			high
14	PTL	PTL On						PTL Off
15	FAN	Fan On						Fan Off
16	Manual	Manual Pickup On						Manual Pickup Off
	Pic kUp
17	Manual
	Sensor		Manual Sensor

4.1.4 Self Test Button

If the Self-Test button pressed, vertical lines are printed.

Turn the power on while pressing this button, '89' shows in the DCU and the printer is warming up. After warming-up the printer is in READY Mode, and '88' shows in the DCU. In this mode, without any detection, the printer begins printing(trial printing and data from the PC). It is convenient to use this mode when the engine malfunction is detected in the control board.

Service Manual

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