Oki C5250 User Manual
C5250
User’s Guide
P
REFACE
Every effort has been made to ensure that the information in this document is
complete, accurate, and up-to-date. The manufacturer assumes no responsibility
for the results of errors beyond its contro l. The manufacturer also cannot guarantee
that changes in software and equipment made by other manufacturers and referred
to in this guide will not affect the applicability of the information in it. Mention of
software products manufactured by other companies does not necessarily
constitute endorsement by the manufacturer.
While all reasonable efforts have been made to make this document as accurate
and helpful as possible, we make no warranty of any kind, expressed or impl ied, as
to the accuracy or completeness of the information contained herein.
The most up-to-date drivers and manuals are available from the Oki Europe
website:
http://www.okieurope.com
Copyright © 2005. All rights reserved.
Oki and Microline are registered trademarks of Oki Electric Industry Company, Ltd.
Energy Star is a trademark of the United States Environmental Protection Agency.
Hewlett-Packard, HP, and LaserJet are registered trademarks of Hewlett-Packard
Company.
Microsoft, MS-DOS and Windows are registered trademarks of Microsoft
Corporation.
Apple, Macintosh, Mac and Mac OS are registered trademarks of Apple Computer.
Other product names and brand names are registered trademarks or trademarks of
their proprietors.
As an Energy Star Program Participant, the manufacturer has
determined that this product meets the Energy Star guidelines for
energy efficiency.
This product complies with the requirements of the Council
Directives 89/336/EEC (EMC) and 73/23/EEC (LVD) as amended
where applicable on the approximation of the laws of the member
states relating to electromagnetic compatibility and low voltage.
Preface> 2
CONTENTS
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Printer overview. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Front view. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Changing the display language . . . . . . . . . . . . . . . 9
Paper recommendations. . . . . . . . . . . . . . . . . . . . 10
Cassette trays . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Multi purpose tray . . . . . . . . . . . . . . . . . . . . . . . 11
Face down stacker . . . . . . . . . . . . . . . . . . . . . . . 12
Face up stacker . . . . . . . . . . . . . . . . . . . . . . . . . 12
Duplex unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Loading paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Cassette trays . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Multi purpose tray . . . . . . . . . . . . . . . . . . . . . 16
Printer settings in Windows . . . . . . . . . . . . . . . . . 17
Printing preferences in Windows applications. . . . . 17
Setup tab . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Job options tab . . . . . . . . . . . . . . . . . . . . . . . 19
Colour tab. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Setting from Windows control panel . . . . . . . . . . . 21
General tab . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Advanced tab . . . . . . . . . . . . . . . . . . . . . . . . 22
Device options tab . . . . . . . . . . . . . . . . . . . . . 24
Colour printing . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Factors that affect the appearance of prints. . . . . . 25
Tips for printing in colour . . . . . . . . . . . . . . . . . . 27
Printing photographic images . . . . . . . . . . . . . 27
Printing from office applications. . . . . . . . . . . . 27
Printing specific colours (e.g. a company logo) . 27
Adjusting the brightness or intensity of a print . 27
Accessing the colour matching options . . . . . . . . . 28
Setting the colour matching options . . . . . . . . . . . 28
Using the colour swatch feature . . . . . . . . . . . . . . 30
Using the Colour Correct Utility . . . . . . . . . . . . . . 31
Menu functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Information menu . . . . . . . . . . . . . . . . . . . . . . . 33
Print menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Media menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Preface> 3
Colour menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
System configuration menu . . . . . . . . . . . . . . . . . 39
USB menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Network menu . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Memory menu . . . . . . . . . . . . . . . . . . . . . . . . . . 41
System adjustment menu . . . . . . . . . . . . . . . . . . 42
Maintenance menu . . . . . . . . . . . . . . . . . . . . . . . 42
Usage menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Replacing consumable items . . . . . . . . . . . . . . . . 44
Consumable order details . . . . . . . . . . . . . . . . . . 45
Toner cartridge replacement . . . . . . . . . . . . . . . . 46
Image drum replacement . . . . . . . . . . . . . . . . . . 52
Replacing the belt unit . . . . . . . . . . . . . . . . . . . . 57
Fuser replacement . . . . . . . . . . . . . . . . . . . . . . . 60
Cleaning the LED head . . . . . . . . . . . . . . . . . . . . 63
Installing upgrades . . . . . . . . . . . . . . . . . . . . . . . 64
Duplex unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Memory upgrade . . . . . . . . . . . . . . . . . . . . . . . . 66
Second paper tray . . . . . . . . . . . . . . . . . . . . . . . 69
Adjusting Windows printer drivers . . . . . . . . . . . . 70
Clearing paper jams . . . . . . . . . . . . . . . . . . . . . . . 71
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Oki contact details . . . . . . . . . . . . . . . . . . . . . . . . 82
Preface> 4
NOTES, CAUTIONS AND WARNINGS
NOTE
A note appears in this manual like this. A note provides
additional information to supplement the main text which may
help you to use and understand the product.
CAUTION!
A caution appears in this manual like this. A caution
provides additional information which, if ignored, may
result in equipment malfunction or damage.
WARNING!
A warning appears in this manual like this. A warning
provides additional information which, if ignored, may
result in a risk of personal injury.
Preface> 5
I
NTRODUCTION
Congratulations on buying this Oki colour printer. Your new
printer is designed with advanced features to give you clear,
vibrant colour prints and crisp black and white pages at high
speed on a range of print media for the office.
Your printer includes these features:
> Up to 16 pages per minute in full colour for fast printing of
high impact colour presentations and other documents;
> Up to 24 pages per minute in black and white for fast and
efficient printing of all general purpose documents not
requiring colour;
> 1200 x 600 dpi (dots per inch) print resolution for high
quality image production showing the finest detail;
> Single Pass Colour Digital LED technology for high speed
processing of your printed pages;
> 10Base-T and 100Base-TX network connection lets you
share this valuable resource among users on your office
network;
> Photo Enhance mode to improve printouts of photographic
images;
> “Ask Oki” – a brand new, user-friendly function that gives
a direct link from your printer driver screen (but not
illustrated in this guide) to a dedicated web site specific to
the exact model you are using. This is where you’ll find all
the advice, assistance and support you could need to help
you get the best possible results from your Oki printer.
Additionally, the following optional features are also available:
> Automatic two-sided (duplex) printing for economical use
of paper and compact printing of larger documents
(standard on the C5250dn);
> Additional paper tray for loading a further 530 sheets to
minimise operator intervention, or different paper stocks
for letterhead stationery, alternative paper sizes or other
print media;
Introduction> 6
> Additional memory allows printing of more complex
pages, including two-sided and booklet pages with the
optional duplex unit.
P
RINTER OVERVIEW
F
RONT VIEW
1
7
2
7
6
3
1. Output stacker, face
down.
Standard printed copy
delivery point. Holds up to
250 sheets at 80g/m².
2. Operator panel.
Menu driven operator
controls and LCD display
panel.
3. Paper tray.
Standard blank paper tray.
Holds up to 300 sheets of
80g/m² paper.
4. Multi purpose feeder.
Used for feeding heavier paper stocks,
envelopes and other special media. Also for
manual feeding of single sheets when
required.
5. ON/OFF switch.
6. Front Cover release (lift).
7. Multi purpose feeder release (2) (press).
5
4
The LCD display language can be changed to show any of 14
different languages. (See “Changing the display language” on
page 9.)
Introduction> 7
R
EAR VIEW
This view shows the connection panel, the rear output stacker
and the location of the optional duplex (two-sided printing) unit.
13
10
11
9
12
8
8. AC power socket.
9. USB interface.
10. Network status lights.
* The Network Interface has a protective “plug” which must be removed before
connection can be made.
11. Network interface.*
12. Location of optional duplex unit.
13. Rear, face up, 100 sheet stacker.
When the rear paper stacker is folded down, paper exits through
the rear of the printer and is stacked here face up. This is mainly
used for heavy print media. When used in conjunction with the
multi purpose feed tray, the paper path through the printer is
essentially straight. This avoids bending the paper around curves
in the paper path and enables feeding of up to 203g/m² media.
Introduction> 8
C
HANGING THE DISPLAY LANGUAGE
The language used by your printer for display messages and for
report printing can be changed quickly and easily as follows:
READY
ATTENTION
BACK
MENU
ENTER
ON LINE
CANCEL
1. Press the + key repeatedly to access the System
Configuration Menu.
2. Press the ENTER key to enter the System Configuration
Menu.
3. Press the – key to move directly to the last item in this
menu: LANGUAGE.
4. Press ENTER to change this setting.
5. Use the +/– keys to move in either direction through the
list of available languages until the language you want is
displayed.
6. Press the ENTER key to select this language.
7. Press the ON LINE key to exit the menu system and return
the printer to standby.
The LCD display language can be changed to any of these
languages:
English Norwegian
German Danish
French Dutch
Italian Turkish
Spanish Portuguese
Swedish Polish
Russian Greek
Introduction> 9
P
APER RECOMMENDATIONS
Your printer will handle a variety of print media, including a range
of paper weights and sizes, transparencies and envelopes. This
section provides general advice on choice of media, and explains
how to use each type.
The best performance will be obtained when using standard
75~90g/m² paper designed for use in copiers and laser printers.
Suitable types are:
• Arjo Wiggins Conqueror Colour Solutions 90g/m²;
• Colour Copy by Neusiedler.
Use of heavily embossed or very rough textured paper is not
recommended.
Pre-printed stationery can be used, but the ink must not offset when
exposed to the high fuser temperatures used in the printing
process.
Envelopes should be free from twist, curl or other deformations.
They should also be of the rectangular flap type, with glue that
remains intact when subjected to hot roll pressure fusing used in
this type of printer. Window envelopes are not suitable.
Transparencies should be of the type designed for use in copiers
and laser printers. We strongly recommend Oki transparencies
(Order No. 01074101). In particular, avoid office transparencies
designed for use by hand with marker pens. These will melt in the
fuser and cause damage.
Labels should also be of the type recommended for use in copiers
and laser printers, in which the base carrier page is entirely
covered by labels. Other types of label stock may damage the
printer due to the labels peeling off during the printing process.
Suitable types are:
• Avery White Laser Label types 7162, 7664, 7666 (A4),
or 5161 (Letter);
• Kokuyo A693X series (A4) or A650 (B5).
Paper recommendations> 10
C
ASSETTE TRAYS
SIZE DIMENSIONS WEIGHT (G/M²)
A6 (Tray 1
only)
A5 148 x 210mm
B5 182 x 257mm
Executive 184.2 x 266.7mm
A4 210 x 297mm
Letter 215.9 x 279.4mm
Legal 13in. 216 x 330mm
Legal 13.5in. 216 x 343mm
Legal 14in. 216 x 356mm
105 x 148mm
Light 64-74g/m²
Medium 75-90g/m²
Heavy 91-120g/
m²
Ultra heavy121-176g/
m²
(Tray 2
only)
If you have identical paper stock loaded in another tray (2nd tray
if you have one, or multi purpose tray) you can have the printer
automatically switch to the other tray when the current tray runs
out of paper. When printing from Windows applications, this
function is enabled in the driver settings. (See “Printer Settings in
Windows” later in this guide.) When printing from other systems,
this function is enabled in the Print Menu. (See “Menu Functions”
later in this guide.)
M
ULTI PURPOSE TRAY
The multi purpose tray can handle the same sizes as the cassette
trays but in weights up to 203g/m². For very heavy paper stock
use the face up (rear) paper stacker. This ensures that the paper
path through the printer is almost straight.
The multi purpose tray can feed paper widths as small as 100mm
and lengths up to 1200mm (banner printing).
For paper lengths exceeding 356mm (Legal 14in.) use paper
stock between 90g/m² and 128g/m² and the face up (rear) paper
stacker.
Use the multi purpose tray for printing on envelopes and
transparencies. Up to 50 sheets of transparencies or 10
envelopes can be loaded at one time, subject to a maximum
stacking depth of 10mm.
Paper or transparencies should be loaded print side up and top
edge into the printer. Do not use the duplex (two-sided printing)
function.
Paper recommendations> 11
F
ACE DOWN STACKER
The face down stacker on the top of the printer can hold up to
250 sheets of 80g/m² standard paper, and can handle paper
stocks up to 176g/m². Pages printed in reading order (page 1
first) will be sorted in reading order (last page on top, facing
down).
F
ACE UP STACKER
The face up stacker at the rear of the printer should be opened
and the tray extension pulled out when required for use. In this
condition paper will exit via this path, regardless of driver
settings.
The face up stacker can hold up to 100 sheets of 80g/m²
standard paper, and can handle stocks up to 203g/m².
Always use this stacker and the multi purpose feeder for paper
stocks heavier than 176g/m².
D
UPLEX UNIT
This option provides automatic two-sided printing on the same
range of paper sizes as tray 2 (i.e. all cassette sizes except A6),
using paper stocks from 75-105g/m².
NOTE
The duplex unit comes as standard with C5250dn.
Paper recommendations> 12
L
OADING PAPER
C
ASSETTE TRAYS
1. Remove the paper tray from the printer.
Fan the paper to be loaded at the edges (1) and in the
2.
middle (2) to ensure that all sheets are properly separated,
then tap the edges of the stack on a flat surface to make it
flush again (3).
123
Loading paper> 13
3. Load letter headed paper face down and top edge towards
the front of the printer, as shown.
21
4. Adjust the rear stopper (1) and paper guides (2) to the
size of paper being used.
To prevent paper jams:
• Do not leave space between the paper and the guides
and rear stopper.
• Do not overfill the paper tray. Capacity depends on the
type of paper stock.
• Do not load damaged paper.
• Do not load paper of different sizes or types at the
same time.
• Do not pull the paper tray out during printing (except
as described below for the 2nd tray).
• Close the paper tray gently.
5. If you have two trays and you are printing from the 1st
(upper) tray, you can pull out the 2nd (lower) tray during
printing to reload it. However, if printing from the 2nd
(lower) tray, do not pull out the 1st (upper) tray. This will
cause a paper jam.
6. For face down printing, make sure the face up (rear)
stacker (3) is closed (the paper exits from the top of the
Loading paper> 14
printer). Stacking capacity is approximately 250 sheets,
4
depending on paper weight.
7. For face up printing, make sure the face up (rear)
stacker (3) is open and the paper support (4) is extended.
Paper is stacked in reverse order and tray capacity is
approximately 100 sheets, depending on paper weight.
8. Always use the face up (rear) stacker for heavy paper
(card stock etc.).
3
CAUTION!
Do not open or close the rear paper exit while printing as
it may result in a paper jam.
Loading paper> 15
M
ULTI PURPOSE TRAY
1. Open the multi purpose tray and press gently down on the
paper platform (1) to ensure it is latched down.
1
2
3
2. Load the paper and adjust the paper guides (2) to the size
of paper being used.
•For single-sided printing on headed paper load the
paper into the multi purpose tray with pre-printed side
up and top edge into the printer.
•For two-sided (duplex) printing on headed paper load
the paper with pre-printed side down and top edge
away from the printer. (Optional duplex unit must be
installed for this function.)
• Envelopes should be loaded face up with top edge to
the left and short edge into the printer. Do not select
duplex printing on envelopes.
• Do not exceed the paper capacity of about 50 sheets or
10 envelopes. Maximum stacking depth is 10mm.
3. Press the tray latch button (3) inwards to release the
paper platform, so that the paper is lifted and gripped in
place.
Set the correct paper size for the multi purpose tray in the Media
Menu (see “Menu Functions”).
Loading paper> 16
P
RINTER SETTINGS IN
Your printer’s operator panel menus provide access to many
options.
The Windows printer driver also contains settings for many of
these items. Where items in the printer driver are the same as
those in the operator panel menus, and you print documents
from Windows, the settings in the Windows printer driver will
override those items in the operator panel menus.
The illustrations in this chapter show Windows XP. Other
Windows versions may appear slightly different, but the
principles are the same.
P
RINTING PREFERENCES IN WINDOWS APPLICATIONS
When you choose to print your document from a Windows
application program a Print dialogue box appears. This dialogue
usually specifies the name of the printer on which you will print
your document. Next to the printer name is a Properties button.
W
INDOWS
When you click Properties a new window opens which contains a
short list of the printer settings available in the driver, which you
can choose for this document. The settings available from within
your application are only those which you may want to change for
specific applications or documents. Settings you change here will
usually only last for as long as the particular application program
is running.
Printer settings in Windows> 17
S
ETUP TAB
When you click the Properties
button from your application’s
Print dialogue, the driver window
opens to allow you to specify your
1
2
3
printing preferences for the
current document.
Paper size should be the
1.
same as the page size of
4
5
6
your document (unless you
wish to scale the printout to
7
fit another size), and should
also be the same as the size
of paper you will feed into the printer.
2. You can choose the source of the paper to feed, which
may be Tray 1 (the standard paper tray), Tray 2 (if you
have the optional 2nd paper tray installed) or the multi
purpose feeder. You can also click on the appropriate part
of the screen graphic to select your preferred tray.
3. The setting for paper weight should match the type of
paper on which you intend to print.
4. A variety of document finishing options can be selected,
such as normal one page per sheet, or N-up (where N can
be any number up to 16) for printing scaled down pages
at more than one page per sheet. Booklet printing prints
two pages per sheet on each side of the paper so that
when folded they make up a booklet. Booklet printing
requires the duplex unit to be installed in your printer.
Poster printing will print large pages as tiles spread over
multiple sheets.
5. For two-sided printing, you can choose to flip the page by
the long edge or the short edge. Of course, this requires
that a duplex unit be installed in your printer.
6. If you have changed some printing preferences before and
saved them as a set, you can recall them to avoid having
to set them individually each time you need them.
7. A single on-screen button restores the default settings.
Printer settings in Windows> 18
JOB
OPTIONS TAB
3
4
1
2
5
7
8
1. The output resolution of the printed page can be set as
follows.
• The highest quality setting prints at 1200 x 600dpi.
This option requires the most printer memory and
takes the longest to print.
• The normal setting prints at 600 x 600dpi and is
adequate for all but the most discerning applications.
• The draft setting prints at 300 x 300dpi and is suitable
for draft documents, where print quality is less critical.
2. You can print watermark text behind the main page
image. This is useful for marking documents as draft,
confidential, etc.
3. You can select up to 999 copies to print consecutively,
although you will need to top up the paper tray during
such a long print run.
4. Page orientation can be set to either portrait (tall) or
landscape (wide).
5. You printed pages can be scaled to fit larger or smaller
stationery.
6. Clicking the Advanced button gives you access to further
settings. For example, you can elect to have black areas
printed using 100%K toner (a more matte appearance).
7. A single on-screen button restores the default settings.
8. The quality of photographic images can be improved.
Printer settings in Windows> 19
C
4
OLOUR TAB
1
2
3
5
1. Control over the colour output of your printer may be
performed automatically, or for advanced control, by
manual adjustment. The automatic setting will be
appropriate in most cases. The other options in this
window only become visible when you select a choice
other than Auto. For greyscale printing, the printer runs at
24ppm and all pages are printed in black and white.
2. You can choose from a range of colour matching options,
depending on the image source for your document. For
example, a photograph taken on a digital camera might
require different colour matching to a business graphic
created in a spreadsheet application. Again, for most
general purpose use, automatic is the best choice.
3. Printed output may be made lighter or darker, or the
colours made more saturated and vibrant as required.
4. Black areas may be printed using 100% cyan, magenta
and yellow (composite black), giving a more glossy
appearance, or using only black toner (true black), giving
a more matte appearance. Choosing the automatic setting
allows the driver to make the most appropriate choice
depending on image content.
5. A single on-screen button restores the default settings.
Printer settings in Windows> 20
S
ETTING FROM WINDOWS CONTROL PANEL
When you open the driver properties window directly from
Windows, rather than from within an application program, a
somewhat more extensive range of settings is provided. Changes
made here will generally affect all documents you print from
Windows applications, and will be remembered from one
Windows session to the next.
G
ENERAL TAB
1
23
1. This area lists some of the main features of your printer,
including optional items, such as duplex (two-sided)
printing.
2. This button opens the same windows as described earlier
for items which can be set from within application
programs. Changes you make here, however, will become
the new default settings for all Windows applications.
3. This button prints a test page to ensure that your printer
is working.
Printer settings in Windows> 21
A
DVANCED TAB
1
2
3
4
5
6
7
8
9
10
11
12
1. You can specify which times of day your printer will be
available.
2. Indicates current priority, from 1 (lowest) to 99 (highest).
Highest priority documents will print first.
3. Specifies that documents should be spooled (stored in a
special print file) before being printed. The document is
then printed in the background, allowing your application
program to become available more quickly.
4. This specifies that printing should not start until the last
page has been spooled. If your application program needs
a lot of time for further computation in the middle of
printing, causing the print job to pause for more than a
short period, the printer could prematurely assume that
the document has finished. Selecting this option would
prevent that situation, but printing will be completed a
little later, as the start is delayed.
5. This is the opposite choice to the one above. Printing
starts as soon as possible after the document begins
spooling.
6. This specifies that the document should not be spooled,
but printed directly. Your application will not normally be
ready for further use until the print job is complete. This
requires less disk space on your computer, since there is
no spool file.
Printer settings in Windows> 22
7. Directs the spooler to check the document setup and
match it to the printer setup before sending the document
to print. If a mismatch is detected, the document is held
in the print queue and does not print until the printer
setup is changed and the document restarted from the
print queue. Mismatched documents in the queue will not
prevent correctly matched documents from printing.
8. Specifies that the spooler should favour documents which
have completed spooling when deciding which document
to print next, even if completed documents are lower
priority than documents which are still spooling. If no
documents have completed spooling, the spooler will
favour larger spooling documents over shorter ones. Use
this option if you want to maximise printer efficiency.
When this option is disabled the spooler chooses
documents based only on their priority settings.
9. Specifies that the spooler should not delete documents
after they are completed. This allows documents to be re
submitted to the printer from the spooler instead of
printing again from the application program. If you use
this option frequently it will require large amounts of disk
space on your computer.
10. Specifies whether advanced features, such as booklet
printing, page order and pages per sheet, are available,
depending on your printer. For normal printing keep this
option enabled. If compatibility problems occur you can
disable the feature. However, these advanced options may
then not be available, even though the hardware might
support them.
11. This button provides access to the same setup windows as
when printing from applications. Changes made via the
Windows Control Panel become the Windows default
settings.
12. You can design and specify a separator page that prints
between documents. This is particularly useful on a
shared printer to help each user find their own documents
in the output stack.
Printer settings in Windows> 23
D
EVICE OPTIONS TAB
In this window you can select which optional upgrades are
installed on your printer. This is covered in more detail in the
section in this guide about installing upgrades.
Printer settings in Windows> 24
C
OLOUR PRINTING
The printer drivers supplied with your printer provide several
controls for changing the colour output. For general use the
automatic settings will suffice, providing reasonable default
settings that will produce good results for most documents.
Many applications have their own colour settings, and these may
override the settings in the printer driver. Please refer to the
documentation for your software application for details on how
that particular program’s colour management functions.
F
ACTORS THAT AFFECT THE APPEARANCE OF PRINTS
If you wish to manually adjust the colour settings in your printer
driver, please be aware that colour reproduction is a complex
topic, and there are many factors to take into consideration.
Some of the most important factors are listed below.
Differences between the range of colours
a monitor or printer can reproduce
> Neither a printer nor a monitor is capable of reproducing
the full range of colours visible to the human eye. Each
device is restricted to a certain range of colours. In
addition to this, a printer cannot reproduce all of the
colours displayed on a monitor, and vice versa.
> Both devices use very different technologies to represent
colour. A monitor uses Red, Green and Blue (RGB)
phosphors (or LCDs), a printer uses Cyan, Magenta,
Yellow and Black (CMYK) toner or ink.
> A monitor can display very vivid colours such as intense
reds and blues and these cannot be easily produced on
any printer using toner or ink. Similarly, there are certain
colours, (some yellows for example), that can be printed,
but cannot be displayed accurately on a monitor. This
disparity between monitors and printers is often the main
reason that printed colours do not match the colours
displayed on screen.
Viewing conditions
A print can look very different under different lighting conditions.
For example, the colours in a print may look different when
Colour printing> 25
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