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2.7.5 Shutter Mechanism
The laser optics housing unit is equipped with a shutte
of the laser optics housing. The shutter motor [A] mov
the idle gear [C] (open = black arrow direction, close =
the idle gear [C] (open = black arrow direction close =
When detecting the printing job, the drive motor [A] sp
the idle gear moves from the photo sensor [D] and ma
job is finished, the drive motor [A] works until the rib be
and the shutter is switched off.
•
Shutter on: Shutter door is opened for Printing an
photo sensor [D].
h t
[D]
•
Shutter off: Shutter door is closed and the rib belo
When there is no printing job, the shutter is off and a p
not on at printing, the "LSU Unit Failure #U2-5113: Tur
[ Shutter open ]
Service Manual
2. Product d
[C]
description
er. As a result, toner and dust do not fall on the glass
ves the shutter [B] in the direction of the arrow with
= white arrow direction).
= white arrow direction)
ins and it turns the idle gear [C] drive. The rib below
akes the shutter move to position. When the printing
elow the idle gear [C] blocks the photo sensor [D]
nd the rib below the idle gear [C] does not block the
ow the idle gear [C] blocks the photo sensor [D].
printing job cannot be executed. When the shutter is
rn off then on" error message will display.
[B]
[B]
[D]
[ Shutter closed ]
2-5
50
[A]
SAMSUNG ELECTRONICS
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