HP Color LaserJet 8550 Multifunction Printer series - Manual (Page 122)

EN Adjusting the Color Balance 121
5 Reprint the color adjust page.
a Press I TEM until PRINT TEST PAGE appears on the display.
b Press S ELECT 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.