HP 98SI, 72SI manual Linearization

Linearization

As the density of an image varies from highlights to shadows, or from lighter tints to darker tints, the printer should accurately reproduce these areas in a predictable, or linear, fashion. The process of linearization (or color calibration) involves printing and reading color test patches, and calibrating the printer to ensure that the expected and printed densities will match. This in turn will ensure optimal color matching.

You should perform a color calibration when:

◆You notice a shift (change) in color output

◆First loading a new media type that you have never cali- brated

◆Changing print mode (only if the most precise color match- ing is required)

The piezo printing technology used by the printer is much less prone to changes in ink drop size over time than thermal inkjet technology; therefore, each media type should only have to be linearized once.

Color calibration is a feature of the print server or RIP con- nected to the printer. Refer to the documentation that accompa- nies the print server for further information.

Tip	For best results, be sure that the color calibration
	patches are dry before taking readings.
Tip	Changing the head height and camera height will
	affect linearization results. Be sure that the head
	height and camera height are set to their desired
	positions with the gauges provided before lineariz-
	ing.

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