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Toshiba TLP-T400 Manual

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Operations
W.BALANCE
OVERLAY
LOCK
STORE
IMAGE
ARM LIGHT
CAMERA
CAMERA
GAIN
O
N
/S
T
A
N
D
B
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W.BALANCE OVERLAY
LOCK
STORE
IMAGE
ARM LIGHT
CAMERACAMERA
GAIN
RGB picture
O
N
/
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A
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Using the document camera (Continued)
■ Using the overlay function
The overlay function can be used to write over computer or video input images.
Have a piece of white paper, and a red or blue pen ready.
1
Place the piece of white paper on a flat surface,
photograph it with the document camera, and
display it on the screen.
Adjust the camera head and arm so that the white paper fills
the screen.
2
Select the input that the overlay function is performed.
Press the INPUT button, use the buttons to select an input other than Camera
input, then press the
button.
3
Press the OVERLAY button.
The overlay function comes on.
(Press it again to turn off the function.)
4
Write on the paper with a red or blue pen.
Before writing, check the position of the pen tip on the screen.
The line written overlays the input source’s image on the
screen.
5
Use the CAMERA GAIN (+/–) button to adjust the lines
or text so that it is easiest to see.
Notes
• The writing will not be displayed properly if using colors other than blue or red.
• The writing may not be displayed properly if the pen is too fine.
■ Locking the white balance
Although the projector’s camera is constantly adjusting the color balance of the images
it photographs, the color balance may be disrupted, depending on the color layout of
the document, etc. If this happens, the white balance can be locked using the
procedure below.
1
Lay down a piece of white paper, and adjust so it fills
the screen.
Adjust the camera head and arm so that the white paper fills
the screen completely.
Screen
Paper
2
Press the W.BALANCE button. The LOCK indicator lights.
The white balance is locked.
The white balance returns to automatic adjustment when
pressing the W.BALANCE button again. Then LOCK indicator
goes out.
Notes
• When the white balance is locked (the LOCK indicator is lit), folding and extending the
arm will automatically return to automatic adjustment.
• The color of the room lighting may prevent the white balance from being adjusted to the
optimum level. In this situation, or if you want to use a certain tinting, adjust the R-level,
G-level, and B-level on the Image adjustment menu
p.53
.
■ Correcting illuminated defects
In rare cases, a portion of the pixels of CCD image sensor used by the camera could be
damaged by cosmic rays and the like. This damage could cause white spots
(illuminated defects) to appear on the screen. If illuminated defects appear in the
images of the document camera, correct them as follows:
1
With the document camera in use, cover the
camera lens completely with black paper, cloth, or
the like.
2
Press the ARM LIGHT button on the Camera control panel and the
button on the control panel (main unit side) simultaneously. (The remote
control buttons cannot be used.)
The illuminated defects are corrected.
PRECAUTION
• Do not press both the ARM LIGHT button and button when the camera lens is not
blocked. Doing so will erase correction data that has already been stored, or add
corrections to normal areas. This should also take care when camera input is not
selected.
Lit
Camera lens
… 24 …


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