Brother DCP-1510 Service Manual page 63

4. 4.4 4 T T ro roub
End users can solve problems related to image defects as long as they follow the User Check items. End users can solve problems related to image defects as long as they follow the User Check items.
If the problem still cannot be solved, implement each procedure according to the step numbers in the If the problem still cannot be solved, implement each procedure according to the step numbers in the
tables below. tables below.
4 4 . . 4 4 . . 1 1 L L i i g g h h t t
4. 4.4. 4.2 2 Fa Faul ulty ty re regi gist stra rati tion
uble lesh shoo ooti ting ng Ac Acco cord
<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.
- - If the whole If the whole page is light,
the toner save mode. the toner save mode.
- - Adjust th Adjust the density us
- - 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
2 2 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
3 3
failure failure
4 4 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
5 5 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
on
S S t t e e p p C C a a u u s s e e
Adjusted value of the laser unit is Adjusted value of the laser unit is
1 1 incorrect. incorrect.
Paper printing position actuator Paper printing position actuator
2 2
caught in sections of the machine caught in sections of the machine
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
1-47 1-47
rdin ing to g to Im Imag age D e Def efec ect t
ironment of the machine. Using the mach nt of the machine. Using the machine in
page is light, toner save mode may toner save mode may be ON. T
e density using the Densi ing the Density Adjust
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 Fig. 1-7 those of the machine. (Refer to
Fig. Fig. 1-8 1-8.) .)
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 . .
<User Check> <User Check>
- - Check that the app Check that the appropriat ropriate paper type is select
driver. driver.
Refer to Refer to "
Laser Unit" in Chapter Laser Unit" in Chapter 3
adjusted value of the laser unit again. adjusted value of the laser unit again.
Reattach the paper printing position Reattach the paper printing position
actuator. actuator.
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 . .
be ON. Turn OFF urn OFF
ty Adjustment. ment.
ne.
R R e e m m e e d d y y
Fig.
e paper type is selected in the ed in the
R R e e m m e e d d y y
" 2.1 Entering Adjusted Value of 2.1 Entering Adjusted Value of
3, , and enter the and enter the
Confidential Confidential
ine in
1-7 and and