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Chapter 9 PGL Command Set Standards
Data Types
There are four data types used in PGL:
• Fixed (template/form description)
• Overlay (interactive)
• Dynamic (mailing lists)
• Incremental (automatically updated information such as check numbers,
order numbers, etc.).
Double-Density Printing (DARK Parameter)
The DARK parameter is available in the Alpha, Reverse, and Barcode
commands to produce darker text, backgrounds, and barcodes. When the
parameter is enabled, horizontal DPI increases from 60 DPI to 120 DPI. This
fills in the holes between multiple dot-columns causing darker output.
Figure 3 shows how Double Dot Density provides a darker print. This
improves the readability of characters and barcodes, and darkess of
background.
Figure 3. Dark Printing