HP Color LaserJet 2840 User Manual

6
Printing with color
This chapter describes how the device provides great color printing. This chapter also
describes ways to produce the best possible color prints. The following topics are covered:
●
Changing the color settings
●
Using color
●
Managing color options
●
Matching colors
ENWW55
 

Changing the color settings
When you are printing in color, the printer driver is automatically set to the optimal color
settings. However, you can manually make adjustments to how the device prints in color for
text, graphics, and photographs. See 
Managing color options for more information.
●Windows: On the Color tab of the printer driver, click Settings.
●Mac OS 9.2.2: In the Print dialog box, select either the Color Options tab or the Color
Matching tab.
●Mac OS 10.2 or 10.3: In the Print dialog...

Using color
This device offers great color as soon as you set it up. It provides a combination of automatic
color features to generate excellent color results for the general user, plus sophisticated
tools for the experienced color user.
The device provides carefully designed and tested color tables to provide smooth, accurate
color rendition of all printable colors.
Media selection
For the best color and image quality, it is important to select the appropriate media type from
the software printer menu...

Managing color options
Setting color options to Automatic typically produces the best possible print quality for color
documents. However, in some situations, you might want to print a color document in
grayscale (black and shades of gray) or to change one of the device color options.
●Windows: Print in grayscale or change the color options by using settings on the Color
tab in the printer driver.
●Mac OS 9.2.2: Print in grayscale or change the color options by using the Color
Matching pop-up menu in the...

Halftone options
Halftoning is the method by which the device mixes the four primary colors (cyan, magenta,
yellow, and black) in varying proportions to create millions of colors. Halftone options affect
the resolution and clarity of your color output. The two halftone options are Smooth and
Detail.
●The Smooth option provides better results for large, solid-filled print areas. It also
enhances photos by smoothing out fine color gradations. Choose this option when
uniform and smooth area fills are the...

Matching colors
The process of matching device output color to your computer screen is quite complex
because printers and computer monitors use different methods of producing color. Monitors
display colors by light pixels using an RGB (red, green, and blue) color process, but printers
print colors using a CMYK (cyan, magenta, yellow, and black) process.
The following factors can influence your ability to match printed colors to those on your
screen:
●print media
●device colorants (inks or toners, for...

7
Copy
Use these instructions to perform copying tasks with the device:
●
Starting a copy job
●
Canceling a copy job
●
Adjusting the copy quality
●
Adjusting the lighter/darker (contrast) setting
●
Reducing or enlarging copies
●
Changing the copy-collation setting
●
Changing the number of copies
●
Copying photos, two-sided originals, or books
Note
Many of the functions that are described in this chapter also can be performed by using the
HP Toolbox. For instructions about using the HP Toolbox, see the HP...

Starting a copy job
To make copies with the device, use the following instructions.
1. Load your original document onto the flatbed scanner face-down (one page at a time)
with the upper-left corner of the document located in the lower-right corner of the glass.
OR
Load your original document face-up into the automatic document feeder (ADF) input
tray. The ADF is recommended for copying multiple-page documents.
2. Press S
TART BLACK or START COLOR on the device control panel to start copying.
3. Repeat...

Canceling a copy job
To cancel a copy job, press CANCEL on the device control panel. If more than one process is
running, pressing C
ANCEL clears the process that currently appears on the device control-
panel display.
Note
If you cancel a copy job, clear the original document from the flatbed scanner or from the
automatic document feeder (ADF).
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Adjusting the copy quality
The factory-set default for copy quality is Text. This setting is the best for items that contain
mostly text.
When making a copy of a photo or graphic, you can select the Photo setting to increase the
quality of your copy.
Select the Mixed setting for documents that include both text and graphics.
If you want to conserve toner, and the copy quality is not as important, select Draft.
To adjust the copy quality for the current job
1. On the device control panel, press QUALITY to...