Lexmark C534n User's Guide - Page 98

What is CMYK color?

Cyan, magenta, yellow, and black inks or toners can be printed in various amounts to produce a large range of

colors observed in nature. For example, cyan and yellow can be combined to create green. Printing presses, inkjet

printers, and color laser printers create colors in this manner. CMYK color is a method of describing colors by

indicating the amount of cyan, magenta, yellow, and black needed to reproduce a particular color.

How is color specified in a document to be printed?

Software programs typically specify document color using RGB or CMYK color combinations. Additionally, they

commonly let users modify the color of each object in a document. For more information, see the software program

Help section.

How does the printer know what color to print?

When a user prints a document, information describing the type and color of each object is sent to the printer. The

color information is passed through color conversion tables that translate the color into appropriate amounts of

cyan, magenta, yellow, and black toner needed to produce the desired color. The object type information lets

different color conversion tables be used for different types of objects. For example, it is possible to apply one

type of color conversion table to text while applying a different color conversion table to photographic images.

Should I use PostScript or PCL emulation printer software? What settings should I use for the best color?

The PostScript driver is strongly recommended for best color quality. The default settings in the PostScript driver

provide preferred color quality for the majority of printouts.

Why doesn't the printed color match the color I see on the computer screen?

The color conversion tables used in Auto Color Correction mode generally approximate the colors of a standard

computer monitor. However, because of technology differences that exist between printers and monitors, there

are many colors that can also be affected by monitor variations and lighting conditions. For recommendations on

how the printer color sample pages may be useful in solving certain color-matching problems, see the question,

“How can I match a particular color (such as a color in a corporate logo)?”

The printed page appears tinted. Can I slightly adjust the color?

Sometimes a user may consider printed pages to appear tinted (for example, everything printed seems to be too

red). This can be caused by environmental conditions, paper type, lighting conditions, or user preference. In these

instances, adjusting the Color Balance setting may be used to create more preferable color. Color Balance

provides the user with the ability to make subtle adjustments to the amount of toner being used in each color plane.

Selecting positive (or negative) values for cyan, magenta, yellow, and black under the Color Balance menu will

slightly increase (or decrease) the amount of toner used for the chosen color. For example, if a user believes the

overall printed page to be too red, then decreasing both magenta and yellow could potentially improve color

preferences.

For information about adjusting the Color Balance setting, see the

Menus and Messages Guide

on the

Software

and Documentation

CD.

My color transparencies seem dark when being projected. Is there anything I can do to improve the color?

This problem most commonly occurs when projecting transparencies with reflective overhead projectors. To obtain

the highest projected color quality, transmissive overhead projectors are recommended. If a reflective projector

must be used, then adjusting the Toner Darkness setting to 1, 2, or 3 will lighten the transparency. For more

information, see the

Menus and Messages Guide

on the

Software and Documentation

CD.

Make sure to print on the recommended type of color transparencies. For more information about the paper and

media specifications, see the

User's Guide

on the

Software and Documentation

CD.

What is manual color correction?

The color conversion tables applied to each object when using the default Auto Color Correction setting generate

preferred color for the majority of documents. Occasionally, a user may want to apply a different color table

mapping. This customization is accomplished using the Manual Color menu and the Manual Color Correction

setting.

Troubleshooting

98

Section	Page
Contents	3
Learning about the printer	9
Configured models	9
Using the security lock feature	10
Understanding the control panel	11
Menus list	12
Installing options	14
Installing a 550-sheet drawer	14
Installing internal options	15
Available options	15
Accessing the system board to install internal options	15
Installing a memory card	18
Installing a flash memory or firmware card	21
Installing a printer hard disk	22
Installing an internal print server or port interface card	24
Reinstalling the system board access cover	25
Attaching cables	26
Loading paper and specialty media	27
Loading the standard tray	27
Loading the optional 550-sheet tray	29
Loading the multipurpose feeder	30
Using the multipurpose feeder	32
Loading the manual feeder	33
Using the manual feeder	33
Using the standard exit bin	34
Setting the Paper Size and Paper Type	35
Tray linking	36
Paper and specialty media guide	37
Media guidelines	37
Media characteristics	37
Unacceptable media	38
Selecting media	38
Selecting preprinted forms and letterhead	38
Using letterhead	38
Using transparencies	39
Using envelopes	39
Using labels	40
Using card stock	40
Storing media	41
Supported paper sizes, types, and weights	41
Supported paper sizes	41
Support for paper types	43
Paper types and weights	43
Paper capacities	44
Printing	45
Installing printer software	45
Printing a document from Windows	45
Printing a document from a Macintosh computer	45
Printing confidential and other held jobs	45
Holding jobs in the printer	45
Printing confidential and other held jobs from Windows	46
Printing confidential and other held jobs from Macintosh	46
Printing from a USB flash memory device	47
Printing a menu settings page	48
Printing a network setup page	49
Printing a font sample list	49
Printing a directory list	49
Printing the print quality test pages	50
Printing a duplex job manually from a Macintosh computer	50
Printing only black text and graphics	50
Configuring the printer for black-only printing	51
Removing the color supplies	51
Configuring the printer for color printing and replacing the color supplies	54
Canceling a print job	55
Canceling a print job from the control panel	55
Canceling a print job from the Windows taskbar	55
Canceling a print job from the Windows desktop	55
Canceling a print job from Mac OS 9.x	56
Canceling a print job from Mac OS X	56
Clearing jams	57
Avoiding jams	57
Identifying the paper path	57
Accessing jam areas	58
Clearing jams just beyond Tray 1	60
Clearing Tray 2 jams	61
Clearing jams behind the inner door	62
Clearing jams under the fuser or fuser cover	63
Clearing jams between the fuser and the standard exit bin	65
Clearing jams in the standard exit bin	65
Clearing jams in the duplex path	65
Clearing jams in the multipurpose feeder	67
Clearing jams in the manual feeder	68
Maintaining the printer	69
Storing supplies	69
Checking the status of supplies	69
Conserving supplies	69
Aligning the toner cartridges	69
Cleaning the printhead lenses	70
Ordering supplies	70
Ordering toner cartridges	71
Ordering a transfer belt	72
Ordering a waste toner box	73
Ordering a fuser	73
Ordering photoconductors	73
Moving the printer	73
Before moving the printer	73
Moving the printer to another location	74
Administrative support	75
Adjusting the brightness or contrast of the display	75
Disabling control panel menus	75
Enabling control panel menus	75
Disabling Quick Start mode	76
Restoring factory default settings	76
Adjusting Power Saver	77
Encrypting the printer hard disk	77
Disabling printer hard disk encryption	78
Locking the control panel menus using the Embedded Web Server	78
Locking the entire printer	78
Modifying confidential print settings	79
Supporting IPSec	79
Supporting SNMPv3	80
Using 802.1x authentication	80
Using Secure mode	81
Troubleshooting	82
Checking an unresponsive printer	82
Solving printing problems	82
Multiple-language PDFs do not print	82
Control panel display is blank or displays only diamonds	82
Error message about reading USB drive appears	82
Jobs do not print	83
Confidential and other held jobs do not print	83
Job takes longer than expected to print	84
Job prints from the wrong tray or on the wrong paper	84
Incorrect characters print	84
Tray linking does not work	84
Large jobs do not collate	85
Unexpected page breaks occur	85
Solving option problems	85
Option does not operate correctly or quits after it is installed	85
Drawers	85
Flash memory card	85
Hard disk with adapter	86
Infrared adapter	86
Internal print server	86
Memory card	86
USB/parallel interface card	86
Solving paper feed problems	86
Paper frequently jams	86
Paper jam message remains after jam is cleared	87
Page that jammed does not reprint after you clear the jam	87
Solving print quality problems	87
Isolating print quality problems	87
Repeating defects	88
Color misregistration	88
Dark lines	89
Light colored line, white line, or incorrectly colored line	89
Streaked horizontal lines	89
Streaked vertical lines	90
Print is too light	90
Print irregularities	91
Print is too dark	91
Transparency print quality is poor	91
Toner fog or background shading appears on the page	91
Gray background	92
Uneven print density	92
Characters have jagged or uneven edges	92
Ghost images	92
Clipped images	93
Incorrect margins	93
Skewed print	93
Blank pages	93
Solid color pages	93
Paper curl	94
Toner specks	94
Toner rubs off	94
Solving color quality problems	95
Quality menu	95
Frequently Asked Questions (FAQ) about color printing	97
Contacting Customer Support	100
Notices	102
Edition notice	102
Trademarks	102
Conventions	102
Federal Communications Commission (FCC) compliance information statement	103
European Community (EC) directives conformity	103
Japanese VCCI notice	104
Noise emission levels	104
Waste from Electrical and Electronic Equipment (WEEE) directive	104
ENERGY STAR	104
Laser notice	104
Laser advisory label	105
Power consumption	105
Product power consumption	105
Power Saver	105
Off mode	105
Total energy usage	106
Statement of Limited Warranty	106

Lexmark C534n User's Guide - Page 98

Menus and Messages Guide, Software, and Documentation, Software and Documentation, User's Guide - color laser printer

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