Problems With Image Quality - GE Amersham Imager 680 Operating Instructions Manual

8 Troubleshooting

8.2 Problems with image quality

8.2 Problems with image quality
An appropriate image does not
appear
If...
An image is overex-
posed
An image is underex-
posed
The focus is not correct-
ly adjusted
The tray, white insert or
window covering the
light source are dirty
The wrong sample tray
is used
The wrong light source
is selected
The size of the object
exposed does not coin-
cide with the exposed
area
Light leaks on the image
If...
The door to the instru-
ment is not completely
closed
The instrument is ex-
posed to direct sunlight
238
Then...
Shorten the exposure time
Prolong the exposure time
Adjust the focus temporarily. See Section 4.3.2 Focus, on
page 81.
If the problem persists contact your GE representative.
Clean the tray, white insert or the window covering the
light source.
Change to the correct sample tray
Select the correct light source
Place the sample correctly on the sample tray and place
the tray in the correct tray position
Then...
Close the door to the instrument and expose the image
again
Avoid direct sunlight
Amersham Imager 680 Operating Instructions 29271308 AB