Kodak DryView 8300 Service Bulletins page 50

2-2-2. (User) Setup Menu
Once the Installation menu parameters are defined, the customer-accessible Setup menus (see
Figure 2) need to be addressed. An important factor about the menus in Setup A that the customer
should be aware of is that even though there are menu items for Density, Contrast, Print Contrast
Samples, Sharp/Smooth, changing them will have no effect on the printed film. Those parameter
menus are present for a generic 8600, just like the menu items Number of Copies, Autoprint, Film
Layout, and Keypad Format are available for when a keypad is being used. However, since the 9410
is being used as a Print Server, it will define the Density, Contrast, Sharp/Smooth parameters. Also, if
the modality sends these parameters with the image, they will override the parameters set in the
9410. The Density setting will always be set to a D-Max of 3.5. There will be no Contrast Test, so it is
imperative to follow the OEM's recommendation for Contrast as a reliable starting point. Any contrast
samples that need to be printed will have to be printed as whole images, printed at different contrast
settings via the Contrast parameter in the 9410.
Also, three password protected menu items not found in the 8300 Setup menus now appear: Gamma
Table, Image Size and Detector Size. Again, the customer will not have access to them. You will set
these parameters during the installation based upon the OEM recommendations (see chart at the
end of this paragraph) and customer acceptance of image quality. If changes are required, the
Password is 338 and, as with all 8300/8600 passwords, it is not to be shared with non-Kodak
personnel.
14. Gamma Table
A gamma table is a measure of the sensitometric characteristics of the film in terms of density or
transmittance. This menu item specifies which of two sets of gamma tables will be used to control
image brightness and density: (1) Xmittance (transmittance ^ 1/3 power vs. exposure) or (2) Linear
OD (linear optical density vs. exposure). The 8600 creates the two sets of 16 gamma tables each
time it does a film calibration. The gamma tables are used by the 8600 in conjunction with the
contrast setting to provide grayscale optimization. The 8-bit input data to the imager is converted to
10-bit U-values through the User Lookup Table (ULUT or Contrast Table). These 10-bit U-values are
input to the Gamma Tables, which then map them into 15-bit laser input values.
Xmittance is normally used if the images are acquired by the modality in "transmittance" mode. This
is evident when the overall images are quite dark.
Linear OD is normally used if the images are acquired by the modality in "density" mode. This is
evident when the overall images are light.
15. Image Size
Image size defines the size of the printed image with one of two menu options: (1) True Size or
(2) Scale to Fit. True size is determined by the size of the modality's detector.
True Size defines the size of the image based upon the value selected in the Detector Size
parameter. That is, a true size image is calculated in the 8600 by multiplying the number of pixels
(horizontal and vertical) by the value selected in the Detector Size menu item. If an image is printed
at True Size, it is printed at the (modality's) Detector Size. For example, a 2000 x 2000 pixel printed
at a set detector size of 50 microns will have a spatial dimension of 100 mm x 100 mm. This is the
actual true size of the image. If the acquired image is too large to be printed at the detector size that
is set on the imager, the imager tries to print the image in the available image space on the film. In
cases like this, an * will be printed on the lower right corner of the film to alert the operator that the
image is not being printed at true size.