Brother International HL-3400CN Service Manual - Page 319

HL-3400CN, SERVICE, MANUAL, cartridge

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HL-3400CN SERVICE MANUAL 1-25 Vertical Smear Phenomenon Printed image is smeared vertically as shown in print sample (25) of Page 8-46. Main Causes (1) Paper dust between the cleaning blade and OPC belt. (2) Debris adhering to the base of a toner cartridge's developer roller where it contacts with the OPC belt. Countermeasures (1) Remove paper dust between the cleaning blade and OPC belt referring to the figure below. OPC belt cartridge O Fig. 8-9 (2) Replace the OPC belt cartridge with a new one. 1-26 Black Toner Light Phenomenon Black color of printed image is light as shown in print sample (26) of Page 8-46, and the printer clatters at the same time. Main Causes Black toner in the cartridge has solidified because the printer is used under high temperature circumstance or due to continuous printing. Countermeasures Replace the black toner cartridge with a new one.

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HL-3400CN
SERVICE
MANUAL
1-25
Vertical
Smear
Phenomenon
Printed
image
is
smeared
vertically
as
shown
in
print
sample
(25)
of
Page
8-46.
Main
Causes
(1)
Paper
dust
between
the
cleaning
blade
and
OPC
belt.
(2)
Debris
adhering
to
the
base
of
a
toner
cartridge's
developer
roller
where
it
contacts
with
the
OPC
belt.
Countermeasures
(1)
Remove
paper
dust
between
the
cleaning
blade
and
OPC
belt
referring
to
the
figure
below.
OPC
belt
cartridge
O
Fig.
8-9
(2)
Replace
the
OPC
belt
cartridge
with
a
new
one.
1-26
Black
Toner
Light
Phenomenon
Black
color
of
printed
image
is
light
as
shown
in
print
sample
(26)
of
Page
8-46,
and
the
printer
clatters
at
the
same
time.
Main
Causes
Black
toner
in
the
cartridge has
solidified
because
the
printer
is
used
under
high
temperature
circumstance
or
due
to
continuous
printing.
Countermeasures
Replace
the
black
toner
cartridge
with
a
new
one.