Brother DCP-1510 Service Manual page 64

4 4 . . 4 4 . . 3 3 D D a a r r k k
4. 4.4 4 .4 .4 Po Poor
<User Check> <User Check>
- - Check the usage env Check the usage environme
hot-humid or cold-dry conditions can cause this problem. hot-humid or cold-dry conditions can cause this problem.
- - Clean t Clean the corona w
- - If a new toner car If a new toner cartridge has be
with a used toner cartridge. with a used toner cartridge.
- - Repla Replace the drum u
- - Repla Replace the toner c
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
High voltage power supply PCB High voltage power supply PCB
2 2
failure failure
3 3 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
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
or fi fix x in ing g
<User Check> <User Check>
- - Check the usage env Check the usage environme
hot-humid or cold-dry conditions can cause this problem. hot-humid or cold-dry conditions can cause this problem.
- - Clean th Clean the corona w
- - Repla Replace the drum u
- - Replac Replace the toner c
S S t t e e p p C C a a u u s s e e
1 1 F F u u 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
High voltage power supply PCB High voltage power supply PCB
2 2
failure failure
3 3 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
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
Low voltage power supply PCB Low voltage power supply PCB
5 5
failure failure
1-48 1-48
ironment of the machine. Using the mach nt of the machine. Using the machine in
he corona wire of the dr ire of the drum unit. um unit.
tridge has been set, chec en set, check that it was not repl
ce the drum unit with a n nit with a new one. ew one.
ce the toner cartrid artridge with a new o ge with a new 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.) .)
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 . .
ironment of the machine. Using the mach nt of the machine. Using the machine in
e 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.
e the toner cartrid artridge with a new o ge with a new one.
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 . .
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 . .
Replace the low voltage power supply PCB Replace the low voltage power supply PCB
unit. unit.
Confidential Confidential
ine in
k that it was not replaced aced
ne.
R R e e m m e e d d y y
Fig. 1-7 and and
ine in
ne.
R R e e m m e e d d y y