Brother DCP-1510 Service Manual page 76

4 4 .7 .7.4 .4 D D ru
<User Check> <User Check>
- - Clean th
- - Replac
4.7.5 .5 Dr 4.7 Drum u
<User Check> <User Check>
- - Set the d
4.7.6 Repla 4.7.6 Replace drum u
display prompting toner cartridge replacement) display prompting toner
<User Check> <User Check>
- - Replace the drum u
rum m e e r r ro ror r
Clean the corona wi e corona wire of the dr re of the drum unit.
Replace the drum unit with a new one, and reset the drum counter e the drum unit with a new one, and reset the drum counter. .
S S t t e e p p C C a a u u s s e e
Dirt on electrodes of the drum unit Dirt on electrodes of the drum unit
1 1 and those of the machine and those of the machine
Connection failure of the high Connection failure of the high
2 2
voltage PCB harness voltage PCB harness
High voltage power supply PCB High voltage power supply PCB
3 3
failure failure
4 4 M M a a i i n n P P C C B B f f a a i i l l u u r r e e
um unit nit can cannot not be be det detec
Set the drum uni rum unit correc t correctly tly. .
S S t t e e p p C C a a u u s s e e
Dirt on electrodes of the drum unit Dirt on electrodes of the drum unit
1 1 and those of the machine and those of the machine
Connection failure of the high Connection failure of the high
2 2
voltage PCB harness voltage PCB harness
High voltage power supply PCB High voltage power supply PCB
3 3
failure failure
4 4 M M a a i i n n P P C C B B f f a a i i l l u u r r e e
ce drum unit (re nit (replac placed the dru
Replace the drum unit with a nit with a new one, and reset
S S t t e e p p C C a a u u s s e e
1 1 M M a a i i n n P P C C B B f f a a i i l l u u r r e e
1-60 1-60
um unit.
Clean the electrodes of the drum unit and Clean the electrodes of the drum unit and
those of the machine. (Refer to those of the machine. (Refer to Fig. 1-7
Fig. Fig. 1-8 1-8.) .)
Reconnect the high voltage PCB harness. Reconnect the high voltage PCB harness.
Replace the high voltage power supply PCB Replace the high voltage power supply PCB
ASSY. ASSY.
R R e e p p l l a a c c e e t t h h e e m m a a i i n n P P C C B B A A S S S S Y Y . .
ected ted. .
Clean the electrodes of the drum unit and Clean the electrodes of the drum unit and
those of the machine. (Refer to Fig. 1-7 those of the machine. (Refer to
Fig. 1-8 Fig. 1-8.) .)
Reconnect the high voltage PCB harness. Reconnect the high voltage PCB harness.
Replace the high voltage power supply PCB Replace the high voltage power supply PCB
ASSY. ASSY.
R R e e p p l l a a c c e e t t h h e e m m a a i i n n P P C C B B A A S S S S Y Y . .
ed the drum unit wi m unit with a new one b th a new one but still s
cartridge replacement)
new one, and reset the drum counter the drum counter. .
R R e e p p l l a a c c e e t t h h e e m m a a i i n n P P C C B B A A S S S S Y Y . .
Confidential Confidential
R R e e m m e e d d y y
Fig. 1-7 and and
R R e e m m e e d d y y
Fig. 1-7 and and
ut still seein eeing LED g LED
R R e e m m e e d d y y