IMAGING FEATURES
LPI/DPI Calibration
Lines Per Inch (LPI) and Dots Per Inch (DPI) values read by the AV7000 must be within
5% of each other. The goal is for the AV7000 to capture square pixels. This is especially
important with certain barcodes and in cases where Optical Character Recognition (OCR) is
required.
1. From the menu tree, navigate to Diagnostic | Image Viewer. The Image Viewer window
opens.
2. Run the prepared test box through the system.
3. Click to zoom into the captured image of the Dynamic Focus Target so one circle fills
the screen.
NOTE: If necessary, hold the Shift key and click to
zoom back out. Alternatively, rotate the mouse wheel
to zoom in or out.
4. While holding down the CTRL key, click and drag a box from the middle of the center dot
to the outer edges of the outer circle as shown below. This image is obviously elongated,
and corrections must be made.