Xerox Phaser 3120 Service Manual page 25

No. Function
00 Motor
01
MHV
02 THV(-) Thv Negative On
03 THV(+)
04 DEV
05 LSU
06
Pic kUp
07
PEmpty
08
Sensor
09
Cover
10 Fus er
11
HotBur n
12 Clean Print
Thv
13
Refer ence
14 PTL
15
FAN
Manual
16 Manual Pickup On
Pic kUp
Manual
17
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.
Enter
Motor Run
Mhv On
Thv On
Supply
Dev On
0 : -630V
LSU Run
On
Pickup On
Paper Empty
Cover Open
Fuser On
HotBurn On
Clean Printing
low
PTL On
Fan On
Manual Sensor
Up/Down
Thv Negative Off
DEV
0 : -430V
Off Ready
Ex it Feed
adequate high
Manual Pickup Off
TROUBLESHOOTING
Stop Remar k
Motor Stop
Mhv Off -1550V
Thv Off +1300V
Dev Off
LSU Stop
Pickup Off
Fuser Off
PTL Off
Fan Off
Service Manual
4-5