HP Color LaserJet 2550L User Manual

5
Color
This chapter describes how the printer provides great color printing. This chapter also
describes ways to produce the best possible color prints. The following topics are covered:
●
Using color
●
Managing color options
●
Matching colors
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Using color
This printer 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 printer provides carefully designed and tested color tables to provide smooth, accurate
color rendition of all printable colors.
HP ImageREt 2400
Image REt 2400 provides 2400 dots-per-inch (dpi) color laser-class quality through a multi-
level printing process. This...

NoteFactors such as the type of monitor you use and the rooms lighting can affect the
appearance of colors on your screen. For more information, see 
Matching colors.
The latest versions of Adobe® PhotoShop®, CorelDRAW™, Microsoft Office, and many
other applications use sRGB to communicate color. Most importantly, as the default color
space in Microsoft operating systems, sRGB has gained broad adoption as a way to
exchange color information between software programs and devices by using a common...

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 printers color options.
●Using Windows, print in grayscale or change the color options by using settings on the
Color tab in the printer driver.
●Using a Macintosh computer, print in grayscale or change the color options by using the
Color...

Neutral Grays
The Neutral Grays setting determines the method for creating gray colors that are used in
text, graphics, and photographs.
●Black Only generates neutral colors (grays and black) by using only black toner. This
option guarantees that neutral colors do not have a color cast.
●4-Color generates neutral colors by combining all four colors of toner. This option
produces smoother gradients and transitions to non-neutral colors. It also produces the
darkest possible black.
Edge Control
The Edge...

Matching colors
The process of matching printer 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, 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
●printer colorants (inks or toners, for...

6
Maintenance
This chapter contains information about these maintenance topics:
●
Managing supplies
●
Cleaning the printer
●
Calibrating the printer
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Managing supplies
For warranty information about these supplies, see Print Cartridge Limited Warranty
Statement.
Supplies life
The life of the imaging drum depends on the number of black-only or color pages that print
jobs require. An HP color LaserJet 2550 series printer imaging drum could last an average of
20,000 pages when printing black-only pages and 5,000 pages when printing color pages.
Actual life lies somewhere between these two numbers, depending on the number of black-
only pages you print...

NoteIf the printer is connected to the network, you can set the HP Toolbox to notify you by e-mail
when a print cartridge is low or the imaging drum is near the end of its useful life. If the
printer is directly connected to a computer, you can set HP Toolbox to notify you when
supplies are low.
To check status and order using the control panel
Do one of the following:
●Check the supplies status lights on the printer control panel. These lights indicate when
a print cartridge or the imaging drum is low...

To recycle supplies, place the used supply in the box in which the new supply arrived. Use
the enclosed return label to send the used supply to HP for recycling. For complete
information, see the recycling guide that is included with each new HP supply item. See 
HP
LaserJet printing supplies for more information about HPs recycling program.
HP policy on non-HP supplies
Hewlett-Packard Company cannot recommend the use of non-HP supplies, either new or
remanufactured. Because they are not HP products, HP...