Brother International HL-3400CN Service Manual - Page 255
DISASSEMBLY, ASSEMBLY, Lower, paper, guide, Paper, sensor, feeding, roller
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CHAPTER 7 DISASSEMBLY & RE-ASSEMBLY 4.6.4 Paper size sensor 3 (PSU) (1) Remove the set screws ST3x6 (2 pcs.) to remove the lower paper guide. (2) Remove the set screws ST3x6 (2 pcs.) holding the paper size sensor PCB. (3) Disconnect the paper size sensor connector, and remove the paper size sensor. Lower paper guide Fig. 7-76 Paper size sensor 4.6.5 Paper feeding roller / Separator pad (2) (1) Remove the set screws ST3x6 (2 pcs.) from the paper guide (UL). (2) Remove the paper guide (UL). (3) Disconnect the harnesses (2 pcs.) connected to the OHP sensor and paper empty sensor. (4) Remove the paper feeding roller from the rear of the printer. I Paper guide (UL) Paper feeding roller Fig. 7-77 7-50
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CHAPTER
7
DISASSEMBLY
&
RE
-ASSEMBLY
4.6.4
Paper
size
sensor
3
(PSU)
(1)
Remove
the
set
screws
ST3x6
(2
pcs.)
to
remove
the
lower
paper
guide.
(2)
Remove
the
set
screws
ST3x6
(2
pcs.)
holding
the
paper
size
sensor
PCB.
(3)
Disconnect
the
paper
size
sensor
connector,
and
remove
the
paper
size
sensor.
Lower
paper
guide
Paper
size
sensor
Fig.
7-76
4.6.5
Paper
feeding
roller
/
Separator
pad
(2)
(1)
Remove
the
set
screws
ST3x6
(2
pcs.)
from
the
paper
guide
(UL).
(2)
Remove
the
paper
guide
(UL).
(3)
Disconnect
the
harnesses
(2
pcs.)
connected
to
the
OHP
sensor
and
paper
empty
sensor.
(4)
Remove
the
paper
feeding
roller
from
the
rear
of
the
printer.
I
Paper
guide
(UL)
Paper
feeding
roller
Fig.
7-77
7-50