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Lexmark 19Z0201 User's Guide - Page 90

How we see color, Primary colors, Using color - printer ink

UPC - 734646150231

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How we see color Red Green Blue When we see color, we actually see light that is passed through or reflected from an object. What our eyes perceive as visible light are wavelengths. Our eyes are sensitive to three specific wavelengths. They are the colors red, green, and blue. When you view your monitor, you see red, green, and blue light that is projected into your eyes. This is known as additive color. Additive color begins with black and adds red, green, and blue to produce the colors you can see. If you add equal amounts of red, green, and blue, you produce white. The images and colors you see on your screen are created using various amounts of red, green, and blue. Primary colors Notice the three primary additive colors red, green, and blue in the illustration. You can see that when all three colors are combined, you get white. However, look at the area where any two colors overlap. What you see is cyan, magenta, or yellow. Equal amounts of green and blue produce cyan. Equal amounts of blue and red produce magenta, and equal amounts of red and green produce yellow. The inks used to place color on your printed material are cyan, magenta, yellow, and black. The colors in newspapers, magazines, and the documents you print are based on the light being reflected from the printed material and into your eyes. The color you see is subtractive color. Subtractive color begins with white light. Portions of the white light wavelength are then subtracted based on the colors present on the printed page. What this means is the light reaching your document is partially absorbed by the ink placed on the page. For example, when white light encounters cyan, it absorbs the red wavelength in the light and reflects blue and green toward your eyes. If you add equal amounts of cyan, magenta, and yellow, you create black. When you combine these colors equally in your printed material you create what is known as processed black. Processed black when printed looks like a very dirty or muddy brown. Because of this, your printer has a black print cartridge to provide you with true black for all your printing needs. 76 Chapter 4: Using color

Section	Page
Table of contents	3
Using your documentation ix	3
Trademarks xiii	3
1 Introducing your printer 1	3
2 Using printer drivers 5	3
3 Changing printer settings 7	3
4 Using color 75	4
5 Managing memory 89	5
6 Handling paper 95	5
7 Replacing supplies 113	6
8 Solving printer problems 145	6
Appendix A: MarkVision 189	7
Appendix B: Printer specifications 201	7
Appendix C: Fonts 205	7
Appendix D: Safety information 215	7
Appendix E: Notices 227	7
Appendix F: Warranty 239	8
Glossary 241	8
Index 255	8
Using your documentation	9
About the manuals	9
Other sources ofinformation	11
Trademarks	13
Introducing your printer	15
Print speed	16
Memory	16
Color quality	16
Printer drivers	17
MarkVision	17
Paper handling	17
Using printer drivers	19
Changing printer settings	21
Using the operator panel	22
Menus	24
Using color	89
Understanding color	89
Managing color	92
Controlling your printer	94
Color Correction	98
Avoiding print quality problems	100
Managing memory	103
Printer memory	103
Adding memory	104
Flash memory	106
Hard disk	106
Managing resources downloaded to flash or disk	107
Handling paper	109
Paper sources and output bins	109
Paper sizes	110
Media guidelines	112
Storing media	118
Avoiding paperjams	118
Loading paper inthe trays	119
Tray linking	123
Using the multipurpose feeder	124
Replacing supplies	127
Ordering supplies	127
Storing supplies	129
When to replacesupplies	130
Recycling usedsupplies	133
Conserving supplies	133
Replacing supplyitems	134
Replacing print cartridges	135
Replacing the coating roll	140
Replacing the fuser kit	145
Replacing the transfer kit	152
Solving printer problems	159
Printer problems	159
Theory of operation	160
Understanding printer messages	161
Identifying other problems	175
Clearing printer paperjams	182
Clearing duplex unit paperjams	189
Cleaning the print cartridge dust collector	195
Cleaning the waste toner sensor	198
Calling for customer support	202
MarkVision	203
Operating systems supported	203
Introducing MarkVision	204
Installing MarkVision on a network	212
Getting updated utilities and drivers	213
Printer specifications	215
Fonts	219
Printing font samples	219
Resident fonts	220
Symbol Sets	225
Downloadable fonts	227
Safety information	229
Notices	241
Laser notices	245
Warranty	253
Glossary	255
A	255
B	256
C	256
D	257
E	258
F	259
G	259
H	260
I	260
J	260
K	260
L	261
M	261
N	262
O	262
P	263
R	265
S	265
T	267
U	267
V	267
Y	268

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Chapter 4: Using color

How we see color

When we see color, we actually see light that is passed through

or reflected from an object. What our eyes perceive as visible

light are wavelengths. Our eyes are sensitive to three specific

wavelengths. They are the colors red, green, and blue.

When you view your monitor, you see red, green, and blue light

that is projected into your eyes. This is known as additive color.

Additive color begins with black and adds red, green, and blue

to produce the colors you can see. If you add equal amounts of

red, green, and blue, you produce white. The images and colors

you see on your screen are created using various amounts of red,

green, and blue.

Primary colors

Notice the three primary additive colors red, green, and blue in

the illustration. You can see that when all three colors are com-

bined, you get white. However, look at the area where any two

colors overlap. What you see is cyan, magenta, or yellow. Equal

amounts of green and blue produce cyan. Equal amounts of blue

and red produce magenta, and equal amounts of red and green

produce yellow. The inks used to place color on your printed

material are cyan, magenta, yellow, and black.

The colors in newspapers, magazines, and the documents you

print are based on the light being reflected from the printed

material and into your eyes. The color you see is subtractive

color. Subtractive color begins with white light. Portions of the

white light wavelength are then subtracted based on the colors

present on the printed page.

What this means is the light reach-

ing your document is partially absorbed by the ink placed on the

page. For example, when white light encounters cyan, it absorbs

the red wavelength in the light and reflects blue and green

toward your eyes.

If you add equal amounts of cyan, magenta, and yellow, you cre-

ate black. When you combine these colors equally in your

printed material you create what is known as processed black.

Processed black when printed looks like a very dirty or muddy

brown. Because of this, your printer has a black print cartridge

to provide you with true black for all your printing needs.

Red

Green

Blue