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User and Service Manual
Doc # M010-004WWE July 2005
Gendex DenOptix® QST
4. Using the exposure conditions outlined in Section 5.1, expose each imaging plate. If pos-
sible, place an object, such as an extracted tooth, in the path of the X-ray beam.
5. Turn on your erasing light source. We recommend a light box or a minimum l00-watt
incandescent light bulb (see Section 5.2).
6. Remove one imaging plate from its barrier envelope and place it with the blue side toward
the light for 2 minutes.
7. Scan the imaging plate. If an image appears, the plate was not completely erased. Repeat
step 6, adding a minute to the exposure time. Continue to repeat until no image appears
on the monitor. Record the erasing time that resulted in no image. This is the time required
to erase an unscanned imaging plate.
8. Repeat steps 1-4. This time, under low light conditions, remove the imaging plates from
the barrier envelopes and mount them on a carousel. Scan the imaging plates.
9. Remove the scanned imaging plates and place them, in the dark, into a light-protected
area (such as a light-tight drawer).
10. Now repeat steps 6 and 7, exposing one plate (blue side toward light) to the erasing light
for 2 minutes, the next plate for 3 minutes, etc., until you find the point where no image
appears on the monitor. This is the time required to erase a scanned imaging plate.
The time required to erase an imaging plate will vary depending on the quality and
intensity of the erasing light source. It should be fairly easy to find a light source that will
erase imaging plates in 2-3 minutes.