Samsung WC-M15i Series Service Manual page 12

3-4 DCU Control
3-4-1 DCU Setup
1) Connect DCU to Controller Board Connector J6 (4 pins) or Engine Board CN2 (4pins).
2) To apply power, simultaneously press and hold down [DOWN], [SHIFT], and [STOP] keys. '78' is displayed.
3) After 2-3 seconds, release the keys. '00' is displayed.
4) Press [UP] or [SHIFT]+[DOWN] keys until the desired code number is displayed in the DCU display.
5) Press [ENTER] to begin operating.
6) Example : Select numbers '13' and '14' to adjust the electrophotography trigger voltage.
7) To end operation, press [SHIFT] and [STOP] keys.
3-4-2 DCU Diagnostic Mode
The DCU is used to diagnose the printer malfunction status.
Display
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
Samsung Electronics
Diagnostic Code Description
MAIN MOTOR ON
MHV ON
THV(-) ON
THV(+) REFERENCE ON
BIAS ON
LSU ON
PICK UP ON
CHECK PAPPER EMPTY SENSOR
CHECK FEED , EXIT SENSOR
CHECK COVER SENSOR
FUSER ON
HOT BURNING
CLEANING PRINT
CHECK THV ON DUTY
THERMISTER II CHECK
FAN ON
Reference Information
3-7