The HP Designjet printer will calibrate itself by printing and then evaluating a page with a series of color gradients that allow analysis of the available colors on the printer to determine whether the machine is behaving to linear standards. The printer has a built-in colorimeter that is mounted on the ink system carriage. In its evaluation of the inks, the printer feeds the test print in and out of the printer several times to measure the patches that have been printed.

Six-color printers generate a six-color set of targets. The purpose of these targets is to provide the machine with feedback as to its color printing performance.

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how do I calibrate color output?