Casio YC-430 - Manual (Page 7)

7
Precautions when Using the PJ
Camera Software
PJ Document Stage
z Never write on the document stage and take care to guard against scratching or otherwise
damaging it. Writing or other marks on the document stage can interfere with projection in
the Document Camera Mode and scanning in the Scanner Mode.
z External Light
Room illumination, sunlight, or light from some other source shining onto the document
stage during a Document Camera Mode or Scanner Mode image recording operation can
cause white out and other image abnormalities.
Document Camera Mode
The Multi PJ Camera System automatically monitors the status of the document stage in
order to optimize contour extraction and automatic image recording operations under a variety
of different conditions. Because of this, you should adjust the camera position whenever
recording conditions change or when you move the camera due to a mode change, etc.
■ Automatic Image Recording
The automatic image recording function detects changes in brightness and contrast. Though
the Multi PJ Camera System can adapt to a wide range of conditions, automatic image
recording may not be possible under the following conditions.
z In a room where there is insufficient lighting to detect contours
z In a room where there are large fluctuations in the lighting level
z A document that is smaller than the specified size
In the above cases, use manual recording.
Tip
If the shutter releases even though there is nothing on the document stage, check the
following.
z If the document stage is badly damaged, have it repaired.
z If the document stage is badly scratched or soiled, clean it by wiping with a cloth
moistened with a weak solution of water and a mild neutral detergent. Wring all excess
water from the cloth before wiping.
z If there has recently been a change in the camera recording conditions, perform camera
position adjustment.