User manual

17
OVERLAY REF SET
This test is for the setting of the control parameters used in the Closed-loop Control ON:
Overlap mode. The procedure is listed below for reference:
1. Enter this test mode by pressing the ENTER key when “OVERLAY REF SET...” is
displayed under SYSTEM menu, SYSTEM TEST item.
2. Once in the test mode, the PARM+ or PARM- key may be used to scroll through the
“number of slots” choices among 640, 1280 and 1920. Note that 32 slots are
approximately one inch long. Press the ENTER key to select the desired test length
(for example, 640 slots ~20”). The ITEM key may be used to exit this test mode.
3. Press the ENTER key to run the test which would output an image of checkerboard
pattern and selected length.
4. After the output image is printed, the message “W=xxxx L=yy S=zzzz” will be
displayed (W and L indicate the number of window slots and of lines used for internal
diagnosis. S is the total number of scan lines of the printed image. The displayed W
value should be equal to the number of test slots selected by the user. The user may
ignore these numbers unless there is an abnormality in the platen accuracy
adjustment. In such case, please contact the factory technical support.) . Press the
CUT/PARM+ key to cut off the output image.
5. The TechSetter will adjust its internal platen accuracy parameter and save it in the
nonvolatile memory for the media type tested.
Note that separate Overlay Ref Set tests are needed for each media type.
CONTRAST TEST
To run the test, press ENTER. Then the PARM+ or PARM- key can be used to select
the range of contrast setting of interest. Press the ENTER key again, and two rows of
checkerboard squares are printed for each contrast setting of the selected range.
== Contrast: 0% ==
== Contrast: 5% ==
== Contrast: -5% ==