Brother DCP-1510 Service Manual page 66

4 4 . . 4 4 . . 7 7 A A l l l b
4. 4.4. 4.8 8 Di Dirt o
l bl l a a c c k k
<User Check> <User Check>
- - Clean t Clean the corona w
- - Repla Replace the drum u
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 laser unit Connection failure of the laser unit
2 2
flat cable flat cable
Laser unit FG plate attachment Laser unit FG plate attachment
3 3
failure (not grounded correctly) failure (not grounded correctly)
High voltage power supply PCB High voltage power supply PCB
4 4
failure failure
5 5 L L a a s s e e r r u u n n i i t t f f a a i i l l u u r r e e
6 6 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
rt on th n the ba e back o ck of p f pap aper er
S S t t e e p p C C a a u u s s e e
1 1 D D i i r r t t o o n n p p a a p p e e r r f f e e e e d d s s y y s s t t e e m m
2 2 D D i i r r t t o o n n t t h h e e f f u u s s e e r r u u n n i i t t
1-50 1-50
he corona wire of the dr ire of the drum unit. um unit.
ce the drum unit with a n nit with a new one. ew one.
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. 1-8 Fig. 1-8.) .)
Reconnect the laser unit flat cable. Reconnect the laser unit flat cable.
Check the contact of the laser unit FG plate, Check the contact of the laser unit FG
and retighten the screws. and retighten the screws.
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 l l a a s s e e r r u u n n i i t t . .
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 . .
<User Check> <User Check>
- - This proble This problem may disappear af m may disappear after printin
sheets of paper. sheets of paper.
- - Replac Replace the toner c e the toner cartridg
W W i i p p e e o o f f f f t t h h e e d d i i r r t t . .
R R e e p p l l a a c c e e t t h h e e f f u u s s e e r r u u n n i i t t . .
R R e e m m e e d d y y
Fig.
ter printing multiple g multiple
artridge with a new o e with a new one. ne.
R R e e m m e e d d y y
Confidential Confidential
1-7 and and
plate,