Oki C5450 User manual

User’s Guide
C5450

Preface> 2
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 control. 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 implied, 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> 3
C ONTENTS
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Notes, Cautions and Warnings . . . . . . . . . . . . . . . . 6
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Printer overview. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Front view. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Changing the display language . . . . . . . . . . . . . . 10
Paper recommendations. . . . . . . . . . . . . . . . . . . . 11
Cassette trays . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Multi purpose tray . . . . . . . . . . . . . . . . . . . . . . . 12
Face down stacker . . . . . . . . . . . . . . . . . . . . . . . 13
Face up stacker . . . . . . . . . . . . . . . . . . . . . . . . . 13
Duplex unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Loading paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cassette trays . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Multi purpose tray . . . . . . . . . . . . . . . . . . . . . 17
Printer settings in Windows . . . . . . . . . . . . . . . . . 18
PCL or PostScript . . . . . . . . . . . . . . . . . . . . . . . . 18
Printing preferences in Windows applications. . . . . 18
PostScript emulation . . . . . . . . . . . . . . . . . . . 19
PCL emulation . . . . . . . . . . . . . . . . . . . . . . . . 20
Secure printing feature . . . . . . . . . . . . . . . . . . . . 21
Sending the document to print . . . . . . . . . . . . 21
Printing secure documents . . . . . . . . . . . . . . . 22
Proof and print feature . . . . . . . . . . . . . . . . . . . . 24
Sending the document to print . . . . . . . . . . . . 24
Printing the remaining copies . . . . . . . . . . . . . 25
Permanent print documents. . . . . . . . . . . . . . . . . 27
Sending the document to print . . . . . . . . . . . . 27
Printing stored documents . . . . . . . . . . . . . . . 28
Windows 9x/Me Differences . . . . . . . . . . . . . . . . 30
Printer settings in Windows . . . . . . . . . . . . . . . . . 30
PCL or PostScript . . . . . . . . . . . . . . . . . . . . . . 30
Printing preferences in Windows applications. . . . . 30
Secure printing feature . . . . . . . . . . . . . . . . . . . . 33
Sending the document to print . . . . . . . . . . . . 33
Proof and print feature . . . . . . . . . . . . . . . . . . . . 35
Sending the document to print . . . . . . . . . . . . 35
Store to hard disk . . . . . . . . . . . . . . . . . . . . . . . 36
Sending the document to print . . . . . . . . . . . . 36

Preface> 4
Colour Printing. . . . . . . . . . . . . . . . . . . . . . . . . . 38
Choosing a colour matching method. . . . . . . . . 38
Matching photographic images . . . . . . . . . . . . 38
Matching specific colours . . . . . . . . . . . . . . . . 39
Printing vivid colours . . . . . . . . . . . . . . . . . . . 39
PCL Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Accessing the colour matching options . . . . . . . 40
Setting the colour matching options . . . . . . . . . 41
Using the colour swatch feature. . . . . . . . . . . . 42
PostScript driver . . . . . . . . . . . . . . . . . . . . . . . . 43
Colour matching options . . . . . . . . . . . . . . . . . 43
PostScript colour matching . . . . . . . . . . . . . . . 44
CMYK ink simulation. . . . . . . . . . . . . . . . . . . . 45
Windows ICM colour matching. . . . . . . . . . . . . 45
Overlays and macros . . . . . . . . . . . . . . . . . . . . . 47
Creating PCL overlays . . . . . . . . . . . . . . . . . . 47
Installing upgrades. . . . . . . . . . . . . . . . . . . . . . . 51
Adjusting Windows printer drivers . . . . . . . . . . 51
Colour Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Factors that affect the appearance of prints. . . . . . 53
Tips for printing in colour . . . . . . . . . . . . . . . . . . 55
RGB or CMYK? . . . . . . . . . . . . . . . . . . . . . . . . 55
PCL Driver and PCLXL Driver . . . . . . . . . . . . . . 55
PostScript Driver . . . . . . . . . . . . . . . . . . . . . . 57
PCL Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Accessing the colour matching options . . . . . . . 58
Setting the colour matching options . . . . . . . . . 59
Using the colour swatch feature. . . . . . . . . . . . 60
PostScript Driver . . . . . . . . . . . . . . . . . . . . . . . . 61
Colour matching options . . . . . . . . . . . . . . . . . 61
PostScript colour matching . . . . . . . . . . . . . . . 62
CMYK ink simulation. . . . . . . . . . . . . . . . . . . . 63
Windows ICM colour matching. . . . . . . . . . . . . 64
Using ICC profiles . . . . . . . . . . . . . . . . . . . . . 64
Using the Colour Correct Utility . . . . . . . . . . . . . . 65
Menu functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Print jobs menu . . . . . . . . . . . . . . . . . . . . . . . . . 67
Information menu . . . . . . . . . . . . . . . . . . . . . . . 67
Shutdown menu. . . . . . . . . . . . . . . . . . . . . . . . . 68
Print menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Media menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Colour menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
System configuration menu . . . . . . . . . . . . . . . . . 77

Preface> 5
PCL emulation . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Parallel menu. . . . . . . . . . . . . . . . . . . . . . . . . . . 82
USB menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Network menu . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Maintenance menu . . . . . . . . . . . . . . . . . . . . . . . 84
Usage menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Overlays and Macros . . . . . . . . . . . . . . . . . . . . . . 86
What are overlays and macros? . . . . . . . . . . . . . . 86
Creating PostScript overlays . . . . . . . . . . . . . . . . 87
Creating the overlay image . . . . . . . . . . . . . . . 87
Create and download the project . . . . . . . . . . . 88
Test printing the overlay. . . . . . . . . . . . . . . . . 89
Defining overlays . . . . . . . . . . . . . . . . . . . . . . 89
Printing with PostScript overlays . . . . . . . . . . . . . 91
Creating PCL Overlays . . . . . . . . . . . . . . . . . . . . 92
Creating the overlay image . . . . . . . . . . . . . . . 92
Create and download macros . . . . . . . . . . . . . 92
Test printing the macro . . . . . . . . . . . . . . . . . 94
Defining overlays . . . . . . . . . . . . . . . . . . . . . . 94
Printing with PCL overlays . . . . . . . . . . . . . . . . . . 96
Replacing consumable items . . . . . . . . . . . . . . . . 97
Consumable order details . . . . . . . . . . . . . . . . . . 98
Toner cartridge replacement . . . . . . . . . . . . . . . . 99
Image drum replacement . . . . . . . . . . . . . . . . . .104
Replacing the belt unit . . . . . . . . . . . . . . . . . . . .110
Fuser replacement . . . . . . . . . . . . . . . . . . . . . . .113
Cleaning the LED head . . . . . . . . . . . . . . . . . . . .116
Installing upgrades . . . . . . . . . . . . . . . . . . . . . . 117
Duplex unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Memory upgrade . . . . . . . . . . . . . . . . . . . . . . . .119
Hard disk drive . . . . . . . . . . . . . . . . . . . . . . . . .122
Adjusting Windows printer drivers . . . . . . . . . . . .125
PCL driver. . . . . . . . . . . . . . . . . . . . . . . . . . .125
PostScript driver . . . . . . . . . . . . . . . . . . . . . .126
Clearing paper jams . . . . . . . . . . . . . . . . . . . . . . 127
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Oki contact details . . . . . . . . . . . . . . . . . . . . . . . 137

Notes, Cautions and Warnings> 6
N OTES , C AUTIONS AND W ARNINGS
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.

Introduction> 7
I NTRODUCTION
Congratulations on buying this Oki Printing Solutions 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 600dpi (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;
>PostScript 3, PCL 5C and Epson FX emulations for industry
standard operation and wide compatibility with most
computer software;
>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 (PCL driver only);
>“Ask Oki” – a brand new, user-friendly function that gives
a direct link from your printer driver screen 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 C5450dn);

Introduction> 8
>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.
>Additional memory allows printing of more complex
pages, including two-sided and booklet pages with the
optional duplex unit.
>Internal 20GB hard disk drive for storage of overlays,
macros and downloadable fonts, and automatic collation
of multiple copies of multipage documents.
P RINTER OVERVIEW
F RONT VIEW
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.
1
2
3
4
5

Introduction> 9
The LCD display language can be changed to show any of 14
different languages. (See “Changing the display language” on
page 10.)
R EAR VIEW
This view shows the connection panel, the rear output stacker
and the location of the optional duplex (two-sided printing) unit.
* The Network Interface has a protective “plug” which must be removed before
connection can be made.
When the rear paper stacker is folded down paper exits the
printer 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.
9
5
7
8
6
10
11
5. ON/OFF switch.
6. AC power socket.
7. Parallel data interface.
8. USB interface.
9. Network interface.*
10. Location of optional duplex unit.
11. Rear, face up, 100 sheet stacker.

Introduction> 10
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:
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
READY
ATTENTION
BACK
MENU
ENTER
ON LINE
CANCEL

Paper recommendations> 11
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 Printing Solutions
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> 12
C ASSETTE TRAYS
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.
SIZE DIMENSIONS WEIGHT (G/M²)
A6 (Tray 1
only) 105 x 148mm
Light 64-74g/m²
Medium 75-90g/m²
Heavy 91-120g/
m²
Ultra heavy121-176g/
m²
(Tray 2
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

Paper recommendations> 13
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 C5450dn.

Loading paper> 14
L OADING PAPER
C ASSETTE TRAYS
1. Remove the paper tray from the printer.
2.
Fan the paper to be loaded at the edges (1) and in the
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> 15
3. Load letter headed paper face down and top edge towards
the front of the printer, as shown.
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
21

Loading paper> 16
printer). Stacking capacity is approximately 250 sheets,
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.).
CAUTION!
Do not open or close the rear paper exit while printing as
it may result in a paper jam.
3
4

Loading paper> 17
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.
2. Load the paper and adjust the paper guides (2) to the size
of paper being used.
•Forsingle-sided printing on headed paper load the
paper into the multi purpose tray with pre-printed side
up and top edge into the printer.
•Fortwo-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”).
2
1
3

Printer settings in Windows> 18
P RINTER SETTINGS IN W INDOWS
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. Windows 2000
versions may appear slightly different, but the principles are the
same. Differences in Windows 98 and Me are covered in a separate
chapter.
PCL OR P OST S CRIPT
Two printer drivers are supplied with your printer: one for PCL
emulation, and the other for PostScript 3 emulation. If you print
mainly from general “Office” applications choose the PCL driver.
For faster printing of PDF documents, choose PostScript. If you
print mainly from professional DTP and graphics applications,
choose PostScript.
P RINTING PREFERENCES IN W INDOWS 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.
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 window which opens when you click Properties depends on
which printer driver has been installed. The PostScript driver
offers different choices to the PCL driver.

Printer settings in Windows> 19
P OST S CRIPT EMULATION
1. Page orientation sets
portrait (tall) or
landscape (wide) page
orientation. The
“rotated” rotates the
paper through 90
degrees anti-clockwise.
2. When printing double
sided pages (duplex
unit required). You can
flip the paper either on
its long edge or short edge.
3. Pages can be printed in forward or reverse order. If using
the face down (top) paper stacker, forward order is
usually appropriate to ensure that pages are stacked in
numerical order. If using the face up (rear) paper stacker,
reverse order would normally stack your pages in
numerical order.
4. You can specify how many pages to print on a sheet.
Pages will be scaled to fit the number you choose. If you
choose booklet printing (requires duplex unit) two pages
will automatically be set, and pages will be printed with
the correct pages opposite one another so that folding the
stacked printout produces a booklet.
5. Advanced options are also available, such as how to
download TrueType fonts, and whether advanced options
such as booklet printing are available.
The printer driver contains extensive on-line help for these items
to help you make the most appropriate choices.
1
5
2
3
4

Printer settings in Windows> 20
PCL EMULATION
When you click the Properties button from your application’s Print
dialogue, the driver window opens to allow you to specify your
printing preferences for this document.
1.
Paper size should be the
same as the page size of
your document (unless you
wish to scale the printout to
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.
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