HP 4500 N manual Adjust the black K density setting, Adjust Gray Balance

Step 5: Adjust the black (K) density setting.

Examine the black density bar (K). If the center oval matches the background pattern more than the other ovals, the black density does not need to be adjusted and you should continue with the next step. If not, use the following steps to adjust the density:

1Press ITEM until BLACK DENSITY displays.

2Press the right side of the VALUE key to increase the value, or press the left side to decrease it, until the number corresponding to the oval that most closely matches the background pattern is displayed.

3Press SELECT to save the value. An asterisk (*) displays next to the selected setting.

	Step 6: Reprint the color balance calibration page. (See step 1.)
	Step 7: Adjust Gray Balance.
Note	Adjusting densities using the gray balance pattern allows you to fine-
	tune color balance. This process affects all four color bars.
	Examine the gray balance circles in the box at the bottom of the color
	balance calibration page (see figure 4-1). If the circle in the center
	most closely matches the background pattern, then the gray balance
	does not need to be adjusted. If the circle does not match, use the
	following steps to adjust gray balance.
	1 Locate the gray circle that most closely matches the background.
	The magenta (M) and yellow (Y) numbers associated with this cir-
	cle indicate the optimum gray balance settings for these colors.
	2 Adjust the magenta and yellow settings to the numbers indicated
	(see the steps on adjusting magenta and yellow settings).
	3 After making adjustments to the magenta and yellow settings,
	press GO to return the printer to the READY state.

82 Using Color EN