Brother International DCP-1400 Service Manual - Page 162
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Trouble (9) White vertical streaks (10) White horizontal stripes a MIll (11) Dropout, white spots, or hollow print '' - . . . . LP Action to be taken At the scanner Check the following components: - CCD unit At the printer side • Clean the laser beam window on the laser unit. • Replace the toner cartridge. • Replace the drum unit. At the printer side • Replace the drum unit. At the printer side • Check the connection of the main PCB and high-voltage power supply PCB. • Replace the toner cartridge. • Gently wipe off the surface of the photo-sensitive drum with a cotton swab. • Replace the drum unit. • Replace the high-voltage power supply PCB. VI - 24
Trouble
Action
to
be
taken
(9)
White
vertical
streaks
At
the
scanner
Check
the
following
components:
-
CCD
unit
At
the
printer
side
•
Clean
the
laser
beam
window
on
the
laser
unit.
•
Replace
the
toner
cartridge.
•
Replace
the
drum
unit.
(10)
White
horizontal
stripes
At
the
printer
side
•
Replace
the
drum
unit.
a
-
MIll
(11)
Dropout,
white
spots,
or
hollow
print
At
the
printer
side
•
Check
the
connection
of
the
main
PCB
and
high
-voltage
power
supply
PCB.
•
Replace
the
toner
cartridge.
•
Gently
wipe
off
the
surface
of
the
photo
-sensitive
drum
with
a
cotton
swab.
•
Replace
the
drum
unit.
•
Replace
the
high
-voltage
power
supply
PCB.
—
'
'
.
.
.
•
•
•
• •
.
•
. . . .
LP
VI
-
24