Datasheet

Installation and Setup
Changing the Printer Driver Options (Properties)
980006-001 Rev. A Zebra P630i & P640i Card Printer Service Manual 69
1. Gain - Adjusts steepness of the curve. Lighter shades will remain unchanged, but darker
shades will get darker or lighter as the number is increased or decreased.
Recommended setting = 95%.
2. Offset - Shifts the color curve up (darker) and down (lighter).
Recommended setting = 95%.
3. Preheat - Adjusts how much the head is preheated before each print line (every three
hundredths of an inch). A larger value darkens (sharpens) the leading edges of colored
areas. A lower value may result in “feathering” - starting light, then darkening over the
following few pixels as the head heats up.
Recommended setting = 90%.
4. Back Black Panel Density - This controls the amount of heat energy applied to any pixel
required to be black. A higher value gives darker printing, but can cause undesirable
blooming (indefinite edges).
Recommended setting = 100%.
5. Black Panel Preheat - Temperature offset applied across the entire head, specifically for
K panel printing. A higher value results in better resin transfer on the leading edge of
graphics and text than you would get with a cold start, but it may lead to undesirable
blooming (indefinite edges) overall.
Recommended setting = 15%.
6. Front Black Panel Density - This controls the amount of heat energy applied to any pixel
required to be black. A higher value gives darker printing, but can cause undesirable
blooming (indefinite edges).
Recommended setting = 100%.
7. Contrast Adjust - A subtle color printing control, allows the user to shape the printer’s
lightness curve. This means the ability to control how the printer resolves, or
differentiates, the lighter and darker shades.
Between contrast settings of 0 and 100, the lightness curve transitions from linear to
sinusoidal. Linear (0%) tends to result in a low contrast, muddy looking image. Sinusoidal
(100%) gives mostly good results, but tends to sacrifice the lightest and darkest shades.
Recommended setting = 80%.
Note • The values shown on the previous page are the default values; recommended settings
(different from the default values) are given in the following descriptions.
Important • The printer must be power cycled for any adjustments to take effect.