HP 8550dn HP Color LaserJet 8550, 8550N, 8550DN, 8550GN, 8550MFP Printer - Use - Page 122

5 Reprint the color adjust page. a Press ITEM until PRINT TEST PAGE appears on the display. b Press SELECT to print the color adjust page. c Re-examine the test page and verify that the color adjustment is correct. z Verify that the circles with the arrows beside them match their background for each of the color ramps (cyan, magenta, yellow, and black). If another circle matches the background more closely, return to step 4 to reset the values on the printer control panel to the number shown in that circle. z Verify that the circles in the neutral axis areas of the test page are neutral gray (gray without a color tint when illuminated by D55 or diffuse sunlight), and then verify that one of the circles in the ramp is a color very close to the background. If the circles are not neutral gray, additional corrections to cyan, magenta, or yellow might be necessary. If there is an overall tint of color in the circles, make the adjustments suggested by the following table. However, the most accurate correction is determined by the circles in the individual black, cyan, magenta, and yellow ramps. EN Adjusting the Color Balance 121