2: Installation and Setup
Changing the Printer Driver Options
P1061942-001 Zebra ZXP Series 1 Card Printer Service Manual 53
- Monochrome Conversion: Specifies the method of monochrome conversion used in
printing. Different selections have different effects on the way the image is printed.
The options are Diffusion, Halftone, Barcode, Text Mode, and Auto.
• Diffusion: Error diffusion is used primarily where you
have a full color (RGB image with 8 bits per pixel) or
full gray (single color but still 8 bits per pixel) that
you need to print with binary printing (can only print
full-on or full-off; i.e., 1 bit per pixel). Typically
preferred over halftoning (see below) for most images.
• Halftone: To simulate gray in graphics, halftones are
printed. Halftones are arrays of dots arranged in a grid
(e.g., 6x6 or 8x8) to represent each image pixel as a
shade of gray. For dark gray, more grid dots are black.
For light gray, more grid dots are white As the grid
size goes up so does the number of possible output
levels, 6x6 cell has 36 possible output levels while
8x8 has 64. But as cell size increases, there is a
corresponding decrease in resolution.
• Barcode: This is the simplest method for converting from 8 bits per pixel to 1 bit
per pixel. For example, the input pixel can be a value from 0 to 255. If the
threshold is 128, any pixel over 128 becomes full on (1); and any pixel that is less
than 128 becomes full off (0). This does not work for continuous-tone pictures.
• Text Mode: This mode can be used when you have text, particularly black anti-
aliased text, as well as small text and text with thin lines. Black anti-aliased text is
typically black in the center; but on the edges, it has shades of gray that get lighter
as you move out form the center of the text. This anti-aliased text will have a
softer looking edge that is less sharp than non anti-aliased text. This does not
work for continuous-tone pictures.
• Auto (default): This mode analyzes the image and optimizes the conversion
mode for each element automatically, not one mode for the entire card.
SUMMARY
Element Diffusion Text Halftone Barcode Auto
Bar co de Yes No No Yes Yes
Text Yes Yes Yes
*
Yes
**
Yes
Pictures Yes No Yes No Yes
Graphics/Logos Yes Yes Yes Yes Yes
Lines Yes Yes Yes Yes
**
Yes
* Do not use on anti-aliased text.
** Does not work well with small text or text with fine lines.
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