Samsung ML-2851ND/SEE Service Manual page 63

No.
Function
00
Motor
01 MHV
02
THV(-)
03
THV(+)
04 DEV
05
LSU
06
PickUp
07 PEmpty
08 Sensor
09
Cover
Fus e r
10
11 Hot Burn
12
Clean Print
Thv
13
Reference
14
PTL
15 FAN
Manual
16
Pic kUp
Manual
17
Sensor
4.1.6.4 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
Alignment & Troubleshooting
Enter
Motor Run
Mhv On
Thv Negative On
Thv On
Supply
Dev On
0 : -550V
LSU Run
On
Pickup On
Paper Empty
Cover Open
Fuser On
Hot Burn On
Clean Printing
low
PTL On
Fan On
Manual Pickup On
Manual Sensor
Up/Down
DEV
0 : -350V
Off Ready
Exit Feed
adequate high
Manual Pickup Off
4-13
Stop Remark
Motor Stop
Mhv Off - 1300V
-1000V
Thv Negative Off
Thv Off +1300V
-350V
Dev Off
LSU Stop 020mV
Pickup Off
Fuser Off
PTL Off PTL No
Fan Off
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