User guide

GS-700 Imaging Densitometer
5-11
described below. You do not need to change the values in the reflective
step tablet form; you can use the default values.
With Calibration On selected, the other calibration settings become active.
Calibration Strip Window
When calibration is turned on, a calibration strip window will appear below
the main scanning window and the length of the main scanning window will
be reduced to 29 cm reflective and 23 cm transmissive.
Every time the densitometer calibrates, an image of the calibration strip will
appear in the calibration strip window.
5.6.a Editing the Step Tablet
Before you can calibrate, you must enter the step tablet values for your
transmissive calibration strip into the Step Tablet Values form.
In the package with your calibration strip, you will find a printout of the
diffuse density values for each segment of your transmissive calibration strip.
Those exact density values must be entered into the computer for the
software to associate a correct density value with each step on the step tablet.
Note: Scanning in transmissive mode with incorrect step tablet values entered
into the form can cause significant errors in the reported densities of your
scans.
To enter the density values for your step tablet, click on the Edit Step Tablet
button in the Densitometer Options box. The Step Tablet Values dialog box for
the GS-700 will open.