Brother International HL-3400CN Service Manual - Page 320

Brother International HL-3400CN - Color Laser Printer Manual

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CHAPTER 8 TROUBLESHOOTING 1-27 Color Missing Phenomenon Color is missing in the printed image as shown in print sample (27) of Page 8-46. Main Causes Fusing failure due to using damp paper or using the printer under high humidity conditions. Countermeasures (1) Use the paper immediately after open the paper bag. (2) Change the NVRAM setting. (Refer to `45-2 THV TUNE UP' in Section 3.3 of Chapter 5.) 1-28 Horizontal Line 244mm from the Edge of Paper Phenomenon A horizontal line appears 244mm from the edge of the printed paper as shown in print sample (28) of Page 8-46. Main Causes Vibration is caused when an OPC belt and the transfer drum contact. Countermeasures Change the resolution to 600 dpi. 1-29 Vertical Lines on OHP Phenomenon Vertical lines appear when printing the OHP sheet as shown in print sample (29) of Page 846. Main Causes Paper dust around the paper exit roller adhering to the OHP sheet. Countermeasures (1) Use the recommended OHP sheet. (2) Clean the paper exit roller. 8-62

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CHAPTER
8
TROUBLESHOOTING
1-27
Color
Missing
Phenomenon
Color
is
missing
in
the
printed
image
as
shown
in
print
sample
(27)
of
Page
8-46.
Main
Causes
Fusing
failure
due
to
using
damp
paper
or
using
the
printer
under
high
humidity
conditions.
Countermeasures
(1)
Use
the
paper
immediately
after
open
the
paper
bag.
(2)
Change
the
NVRAM
setting.
(Refer
to
`45-2
THV
TUNE
UP'
in
Section
3.3
of
Chapter
5.)
1-28
Horizontal
Line
244mm
from
the
Edge
of
Paper
Phenomenon
A
horizontal
line
appears
244mm
from
the
edge
of
the
printed
paper
as
shown
in
print
sample
(28)
of
Page
8-46.
Main
Causes
Vibration
is
caused
when
an
OPC
belt
and
the
transfer
drum
contact.
Countermeasures
Change
the
resolution
to
600
dpi.
1-29
Vertical
Lines
on
OHP
Phenomenon
Vertical
lines
appear
when
printing
the
OHP
sheet
as
shown
in
print
sample
(29)
of
Page
8-
46.
Main
Causes
Paper
dust
around
the
paper
exit
roller
adhering
to
the
OHP
sheet.
Countermeasures
(1)
Use
the
recommended
OHP
sheet.
(2)
Clean
the
paper
exit
roller.
8-62