Bio-Rad Gel Doc™ XR+ System - Manual (Page 22)

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STEP 2: Initialization of the Camera and lens assembly Procedure (for Gel Doc  XR/
ChemiDoc  XRS systems):
1. Press the Epi-Illumination button.
2. Open the door and determine if lights are on.
3. Place the focusing target on the UV transilluminator.
4. Double click on Quantity One
 software icon on the desktop. From “File Menu” select
“Gel Doc  XR” or “ChemiDoc  XRS”.
NOTE: Dark Reference comes up on first use for both Gel Doc
 XR and ChemiDoc
XRS systems. Please refer to next step for details about “Reference Dark” image
acquisition.
5. Select Live/Focus.
6. An image of the target will appear on the computer screen. Using the lens control buttons
on the membrane touch pad or the control panel that appears in the software, find the best
Iris, Focus, and Zoom conditions.
Note: Working with a widely open Iris and changing the Zoom may require you to
adjust the Focus.
STEP 3: Dark Reference Acquisition:
Note: Please note that the steps described below must be performed in either of the
following scenarios:
a. When installing the system with a new computer or Camera
b. When software is first installed or reinstalled for any reason