Samsung MSYS 5200 User Manual

Laser Printer,

Scanner

User’s Guide

Msys 5200

ELECTRONICS

P/N: JC68-00146A Rev.1.00

Internet Home Page: http://www.samsungtelecom.com

Trademarks

¥ Windows is a trademark of Microsoft Corporation.
¥ IBM is a trademark of International Business Machines.
¥ Centronics is a trademark of Centronics Data Computer.
¥ Other names and trademarks mentioned in this manual are trademarks of their respective

holders.

Thank you for purchasing Samsung Msys 5200Ñthe multifunction
office product for your home office and the whole family. We are sure
that Samsung Msys 5200 will provide all you need in one machine.

Samsung Msys 5200 combines these office machines:

- Plain paper fax

- Copier

- Laser printer

- Scanner

This booklet contains instructions for Laser Printer and Scanner.
Refer to the UserÕs Guide for Laser Facsimile and Copier to use your
machine as a plain paper fax and copier.

Enjoy your new Samsung Msys 5200!

i

Contents

About SmarThru Software ___________________________ 1.1
MFP Driver _________________________________________ 1.2
SmarThru Software __________________________________ 1.2
OCR software _______________________________________ 1.2
Bonus Software _____________________________________ 1.2

System Requirements _______________________________ 1.3
Installation Procedure _______________________________ 1.3

Install the Samsung Software _________________________ 1.3

Install Bonus Software _______________________________ 1.6

Uninstalling SmarThru Software

_____________________ 1.6

In Windows 9x, NT__________________________________ 1.6

In Windows 3.x______________________________________ 1.7

Using the SmarThru CD-ROM_________________________ 1.8

Printing a Document ________________________________ 2.1
Printer Settings _____________________________________ 2.2

Basic Tab ___________________________________________ 2.2
Print Quality Tab ____________________________________ 2.3
Advanced Tab

______________________________________ 2.3

About Tab

__________________________________________ 2.4

Using Help

_________________________________________ 2.4

Changing Printer Settings for All Documents __________ 2.4

Chapter 1 Installing SmarThru Software

Chapter 2 Printing

1 Installing Software

2 Printing

3 Scanning

4 Troubleshooting

ii

Overview___________________________________________ 3.1
Scanning the Image _________________________________ 3.2
Samsung TWAIN for Scan Windows __________________ 3.3
Using On-Line Help _________________________________ 3.3
Scanner Control Tabs _______________________________ 3.4
Basic Tab ___________________________________________ 3.4

Job Type ____________________________________________ 3.4
Image Type _________________________________________ 3.4
Resolution __________________________________________ 3.5
Image Area _________________________________________ 3.6
Reduce/Enlarge _____________________________________ 3.6
Balance Tab_________________________________________ 3.8
Color Channel_______________________________________ 3.8
Highlight ___________________________________________ 3.8
Shadow ____________________________________________ 3.8
Midtone ____________________________________________ 3.9
Advanced Selection __________________________________ 3.9
Effects Tab__________________________________________ 3.14
Rotate Image ________________________________________ 3.14
Flip Image __________________________________________ 3.14
Sharpness___________________________________________ 3.15
Descreen____________________________________________ 3.16
Preview Window ____________________________________ 3.17
Image Control Tools__________________________________ 3.18

Chapter 3 Scanning

Fixing Problems_____________________________________ 4.1
Printer Problems ____________________________________ 4.1
Printer Quality Problems _____________________________ 4.3

Chapter 4 Troubleshooting

1.1

Installing SmarThru Software

About SmarThru Software

You must install the SmarThru CD-ROM to print, scan, or send or receive
electronic faxes. The SmarThru includes the followings:

¥ MFP Driver
¥ SmarThru Software
¥ OCR Software (AnyPage)
¥ Bonus software (Acrobat Reader 3.xx)

For details on the drivers, refer to each itemÕs description.

Installing
SmarThru Software

1.2

Installing SmarThru Software

MFP Driver

To use the machine as your printer, or scanner, or to send or receive
electronic faxes, you must install the MFP driver.

SmarThru Software

The SmarThru software contains:

ScanThru

It lets you scan documents and images quickly and easily. With the
ScanThru, you can set image type and resolution for the scanner, adjust
brightness and contrast, perform a color correction, and so on.

CopyThru

It lets you make a copy of the scanned documents or images. With
CopyThru, you can change resolution and image type used for copying,
and so on.

FaxThru

It helps you to create fax cover and send electronic faxes.

DocuThru

General form to work with messages. With DocuThru, you can perform all
the operation of the SmarThru system.

ImageThru

It is an image database manager and image editor program. With the
ImageThru, you can search the database for images, adjust parameters of
an image, such as brightness, contrast and saturation, and apply different
effects, such as sharpening, emboss, posterize, mosaic etc. You can also send
images by fax or mail

MailThru

With MailThru you can send, receive and easily organize your work with
e-mail messages. The system provides you with convenient tools which let
you sort and find messages using a number of criteria; operate on messages
using scenatios.

OCR Software (AnyPage)

OCR (Optical Character Recognition) is a software that has the ability to
recognize most character formats. So that a scanned document can be read
and edited on your word processor.

Bonus Software

Acrobat Reader 3.x is installed. With Acrobat Reader 3.x, you can view and
print the SmarThru UserÕs Guide contained in the SmarThru CD-ROM.

1.3

Installing SmarThru Software

1 Installing Software

System Requirements

Before you start, make sure you have the following minimum computer
setup:

¥ Windows 3.x, or Windows 9x: 486SX 33MHz or higher processor with 8

MB or higher RAM

¥ Windows NT 4.0 (Service Pack 3): Pentium 90 or higher CPU with 32 MB

or higher RAM

¥ Free disk space of at least 50MB for full installation

¥ CD-ROM drive

Installation Procedure

Ã

Make sure the machine is plugged in and connected to your computer. Turn
your computer and the machine on.

Ã

If Windows 95/98 users see the ÒNew Hardware FoundÓ screen, close it by
clicking

Cancel

.

Install the Samsung Software

1. Insert the supplied CD-ROM into your CD-ROM drive.

The SmarThru program is automatically running and the Samsung
SmarThru Installation screen will appear.

If the Samsung SmarThru Installation screen does not appear:

1) Windows 95/98 users should select Run from the Start menu.
Windows 3.x users should select Run from the File menu.

2) Type D:\Autorun (where ÔDÔ represents the letter designation of your

computerÕs CD ROM drive), and click OK to start the installation
program.

2. The SmarThru program will begin. Click Install the Samsung Software
on your PC.

1.4

Installing SmarThru Software

3. Follow the on-screen instructions and click Next.

The SmarThru installation supports two types of setup. Typical setup will

be installed with the most common options. Recommended for most

user. In Custom setup, you can select components to be installed.

1.5

Installing SmarThru Software

1 Installing Software

If you select Custom installation, you may choose the options you
want to install.

MFP driver to print, scan, or
send or receive electronic faxes.

SmarThru soft to work with
scanned images, and electronic
documents.

AnyPage software to enable
OCR.

4. When the installation is completed, you must shut down and restart your
computer.

If your computer does not shut down and restart automatically, you must shut
it down manually and restart it before the changes you have made will be in
ineffect.

5. After Windows restarts, the Select Service dialog box will appear. You can
select the system service you want to use.

6. Click Next and follow the on-screen instructions.

1.6

Installing SmarThru Software

Install Bonus Software

(Acrobat Reader 3.xx)

1. Insert the SmarThru CD-ROM into your CD-ROM drive.

The SmarThru installation program will begin. If the program does not
start, select Run from the Start menu for Wondows 95/98. For Windows

3.1x, select Run from the File menu, then type D (or E): \Autorun, and
click OK to start the program.

2. When the Samsung SmarThru Installation screen appears, click Install
bunus software on your PC, and follow the on-screen instructions.

Uninstalling SmarThru Software

Uninstallation is only required if you are upgrading the software, or if your
installation fails.

In Windows 9x, NT

1. Start Windows if not already started.

2. If you find the SmarThru icon and/or the SmarThru engine icon on the

right corner of the taskbar at the bottom of your screen, the Smarthru
application and the SmarThru engine are woking. Close the application
and the engine as follows:

Right-click the icon. When the pop-up menu opens, select Close.

1.7

Installing SmarThru Software

1 Installing Software

3. From the Start menu, select Programs.

4. Select Samsung SmarThru, then Uninstall. The uninstall dialog box

appears. Follow the instructions on the screen to complete uninstallation.

In Windows 3.x

1. Start Windows if not already started.

2. If you find the SmarThru icon and/or the SmarThru engine icon at the

bottom of your screen, the Smarthru application and the SmarThru
engine are woking. Close the application and the engine as follows:

Click the icon. When the pop-up menu opens, select Close

3. From the Program Manager, double click the Samsung SmarThru.

4. In the SmarThru windows, double click the Uninstall icon. The

Uninstall dialog box appears. Follow the on-screen instructions to
complete uninstallation.

1.8

Installing SmarThru Software

The selected components are uninstalled. You must shut down and restart
your computer to complete the uninstallation process. If your computer
does not shut down and restart automatically, you must shut it down
manually and restart it before the changes you have made will be in effect.

Using the SmarThru CD-ROM

You can uninstall the MFP driver and the SmarThru software with the
CD-ROM you have used to install the software.

1. Insert the SmarThru CD-ROM into your CD-ROM drive.

The SmarThru installation program will begin. If the program does not
start, select Run from the Start menu (for Wondows 95/98. For Windows

3.1x, select Run from the File menu), then type D (or E): \Autorun, and
click OK to start the program.

2. When the Samsung SmarThru Installation screen appears, click Uninstall
the Samsung software your PC, and follow the on-screen

instructions.

3. Click on the checkboxes to select the components you wish to

uninstall. Click on Next.

2.1

Printing

Printing a Document

This procedure describes the general steps required for printing from
various Windows applications. The exact steps for printing a document
may vary depending on the application program you are using. Refer to
your software applicationÕs documentation for the exact printing
procedure.

1. Make sure that your machine is properly connected to the computer, and

the On/Off Line lamp light is steadily on (if it is not, press the On/Off
Line button).

Make sure that you have installed the MFP driver contained on the
supplied setup CD-ROM. See ÔInstalling SmarThru SoftwareÕ on page 1.1.

2. Create or open the document you want to print.

3. Choose Print or Print Setup from the File menu. Make sure that your

printer is selected as the default printer.

4. Click on the Properties or Setup button if you want to make any

adjustments that are appropriate for printing your document. (See

ÔPrinter SettingsÕ on page 2.2.)

5. Select OK to close the Properties dialog box.

6. After making any necessary changes to the printing parameters, select

OK to start the printing job.

Printing

2.2

Printing

If you load paper into
the manual feeder slot,
select ‘Manual Feed.’

This setting allows
you to enlarge or
reduce the image
on the print page.

Basic Tab

This tab allows you to specify number of copies, paper orientation, paper
source, paper size, and image scaling size.

Printer Settings

You can use your machine with all your Windows 3.x or Windows 9x, or
Windows NT applications. Be sure to set your printer as the default printer
for all your Windows operations.

Most Windows software applications allow you to make changes to the
printer settings. This changes the number of copies, sequence of the pages,
and paper orientation.

If you click Properties, Setup, or Options in the Print dialog box, youÕll

access the printer driverÕs dialog box. It allows you to change additional
printer settings. Settings changed in the software application will usually
override settings made in the printer driver.

Your printer driverÕs Properties dialog box includes three tabs (four tabs on
Windows NT only).

2.3

Printing

2 Printing

In general, higher
resolution looks better
but takes longer to print
and requires more
memory.

If you want to save toner
when you are printing,
select ‘ON’.

Print Quality Tab

This tab allows you to specify the print resolution.

Advanced Tab

If you are Windows NT user, you can see ÔAdvanced TabÕ, if you want to
know more about ÔAdvanced TabÕ, click on the help button. The help screen
gives detailed information about each menu.

2.4

Printing

About Tab

This tab shows the printer software version.

Using Help

Your printer driver includes comprehensive screen help. For detailed
information about each setting, press F1 key except Windows 3.x.

Changing Printer Settings for All Documents

Changing the printer settings from your application program will change
them for one document. If you want to change for all documents you print
on this printer, open the printer Properties dialog box as shown below, then
change the printer settings.

✔ Windows NT users should select properties via ApplicationÕs Print

Menu.

Windows 9x users should select Start, Settings, Printers. Then from the File
menu, click Properties.

Windows 3.x users should select Program Manager, Main, Control Panel,
Printers. Then click Setup.

3.1

Scanning

Overview

Scanning converts a photo or paper document into a computer image.
Types of documents that you can scan include photos, drawings, magazine
pages, newspaper articles, and just about any other type of single page
image. You put the paper into the scanner, and then the computer and
scanner work together to create a computer image.

After you have installed the supplied CD-ROM, you can use the machine as
a black and white scanner. The CD-ROM contains the SmarThru program
which is easy and convenient tool to manage your work with a scanned
image. With SmarThru, you can quickly scan and save the image, make
copies of part of the image, and use the image in creative projects, like
newsletter, brochures, letterhead, and more. You can also share the scanned
images electronically through E-mail, and fax. For details on how to use the
SmarThru program, use the on-line help, or refer to the UserÕs Guide which
is contained in the CD-ROM.

You can also use other TWAIN-compliant image editing software
application like SoftScan Pagies SE, Text Bridge, or Adobe Photoshop. The
Samsung TWAIN for Scan window will be displayed when you choose
Samsung TWAIN for Scan to scan documents or photographs from the
TWAIN-compliant image editing application.

Scanning

3.2

Scanning the Image

This section describes the basic procedures for scanning with a
TWAIN-compliant image editing application.

1. Turn on your machine and PC, then start Windows.

2. Open your TWAIN-compliant image editing application.

3. Choose Select Source from the File menu.

4. Select Samsung TWAIN for Scan in the Select Source dialog box.

5. Open the File menu, and select Acquire. The Samsung TWAIN for Scan

window will appear. For the window, see the next page.

6. Select the appropriate scanning options for the document or
photograph you want to scan.

For more information on scanning controls, preview options, and other
advanced scanning features, see page 3.4.

7. Load the document or photo in the document feeder of your machine.

8. Click on Scan. The document will be scanned and displayed in the

image editing application.

Scanning

3.3

3 Scanning

Samsung TWAIN for Scan Window

The Samsung TWAIN for Scan window is used to view and modify the
scanned image. Using the features of this window, various images
processing options can be applied to the scanned image.

Using On-Line Help

You can refer to the Samsung TWAIN for Scan on-line help function for
assistance. To access the on-line help, roll the course over the feature of the
window the help is desired for. A yellow popup dialog box will appear.
Click on the dialog box to access on-line help.

On-line Help contains information about using the menus and commands.
Use Help anytime you need information on how to use a particular menu
or command.

Scanner Control Tabs

For more information, see
page 3.4.

Preview window

For details on the tools in
the preview window,
see page 3.17.

Scanning

3.4

Scanner Control Tabs

You can adjust the settings for the document or photograph to be scanned
prior to capturing the image using the features of the Scanner Control tabs.

Each of the tabs is described in detail in the following sections:

-for Basic tab, see page 3.4.

-for Balance tab, see page 3.8.

-for Effects tab, see page 3.14.

The About tab shows the version of the Samsung TWAIN for Scan
application.

The following pictures show examples of the various scan modes.

Gray 256 scales Halftone, B/W Lineart, B/W

Basic Tab

Job Type

This menu allows you to select the job type.

Image Type

This menu specifies the mode in which the image is to be scanned in.

Scanning

3.5

Gray 256 Scales

Images scanned in this mode will show up to 256 shades of gray. If high
quality copies of photographs or other continuous tone originals are
desired, Gray 256 Scales is the best choice.

Gray 256 Scales provides accurate representation of black and white, and
intermediate gray shades between black and white, for each individual
pixel. It actually provides 256 shades, representing white by the value 255
and black by the value zero, with progressively lighter intermediate shades
of gray by values from 1 through 254.

Halftone B/W

This scan mode uses various combinations of black and white pixels to
simulate gray scales. While not the same level of image quality as the Gray
256 Scales image type, this image type is good for continuous tone images
where smaller file size is more important than ideal image quality.

Lineart B/W

Lineart B/W mode is generally the best choice for printed text or pen-and­ink drawings. Like the Halftone B/W image type, this image type defines
the state of each pixel in the image with one bit that is either on or off. For
this reason, files created in this mode will require approximately the same
amount of disk space as a Halftone B/W file.

✔ In both Halftone and Lineart modes, the resolution can only be set to

150, 200, or 300 dpi.

3 Scanning

Resolution

The resolution setting determines the amount of information the scanner
will capture in a resulting scanned image.

Scanning

3.6

300 dpi 75 dpi

You can select any one of the resolutions shown on the Resolution menu,
or specify your own resolution by selecting the Custom option which
invokes the Custom Resolution dialog box.

To use the Custom Resolution dialog box, type the desired resolution (in
dpi), and click OK. The custom resolution created will be displayed in the
Resolution menu.

✔ The Resolution settings can be restored by clicking Defaults at the

bottom of the Basic tab.

Image Area

You can select any size of scanning area on the image area menu. This
reflects the selection frame on Preview window.

Reduce/Enlarge

This feature allows an image to be automatically enlarged or reduced as it
is scanned. The default scale factor is 100%. The selected scaling factor, the
range of which is dependent on the selected image type, affects the printed
scan output.

The resolution can be measured in dpi (dots per inch). The higher the
resolution is, the finer the image detail and the bigger the image file size is.
See the examples of images at 75 and 300 dpi.

Scanning

3.7

Scaling 100% Scaling 50%

3 Scanning

Fixed scaling options are displayed in percentages of reduction or
enlargement. Image width and height are scaled proportionally when fixed
scaling factors are used. To scale to a size other than the fixed sizes, select
the Custom option in the Scaling menu. The Custom Scaling dialog box
will appear.

To change Height or Width text box values:

1. Insert the desired height or width value into the Height or Width edit
boxes.

2. The units of measurement may be changed to inches, centimeters,
millimeters, pixels, picas or percentages of the original image dimensions
by selecting the desired unit of measurement from the Units drop-down
list boxes to the right of the Height and Width text boxes.

3. To prevent distortion of the image when changing height and width
values, the height and width values are automatically linked - you need
only enter one value, either a Height or Width value. The other value will
be computed and the image will resize proportionately.

✔ You can also change Height and Width values by directly adjusting the

selection frame.

✔ Output image file size is proportional to both Height and Width. If

both Height and Width values are doubled, then the image area and
image file size will increase four-fold.

✔ Once you have confirmed or changed the size, resolution, and final

scan boundary settings, the scanning software determines the size of
the resulting scanned image and displays this information along with
available hard disk space.

✔ When scanning a printed image for screen display only, scale the

image down to increase processing speed and decrease the file size.

Scanning

3.8

The Color Channel radio buttons are used to specify the color channel in
which to change the Highlight, Shadow and Midtone values.

The only channel available to be selected when using your machine to scan
is the Gray channel. Red, Green and Blue are used for scanners capable of
scanning documents in color.

Highlight

Balance Tab

Color Channel

The Highlight value represents the lightest value in an image. All pixels
above this point will be rendered as pure white. If you subsequently
broaden the highlight points on the Level Adjustment graph, the pixels
will be remapped within the new range, thus allowing you to see more
detail in the image.

The Highlight scroll bar allows you to manually set a highlight level. The
default for the Highlight settings is 255. You can increase or decrease the
highlights in a particular image as needed by adjusting this scroll bar. The
value in the adjacent box will change in the range 1 to 255 as the slider
moves.

Shadow

The Shadow value represents the darkest value in an image. All pixels
below this point will be rendered as pure black. If you subsequently
broaden the shadow points on the Level Adjustment graph, the pixels will
be remapped within the new range thus allowing you to see more detail
in the image.

The default value for Shadow is 0. You can increase or decrease the
shadows in a particular image as needed by adjusting this scroll bar.

Scanning

3.9

3 Scanning

Midtone

All optical devices such as monitors and scanners have some differences
in their light sensitivity characteristics. Samsung TWAIN provides
Midtone adjustment for you to compensate for these differences in your
scanner, and it produces better scanned images.

To change the Midtone value, move the slider to the left or right to change
the values in the adjacent text box. The value in the adjacent box will
change in the range 0.1 to 10.0 as the slider moves.

Ordinarily, good results can be obtained from your machine by leaving
the slider at its default value of 1.00.

Advanced Selection

The advanced selection will present features that allow you to modify the
Level Adjustment and the Tonal Map of the document.

For both the Level Adjustment and the Tonal Map functions, the window
displayed contains small representations, known as thumbnail views, of
the original and enhanced images (Samples 1 and 2).

To activate the Level Adjustment or Tonal Map functions, click on the
Advanced... button at the bottom of the Balance tab.

When this button is selected, the Level Adjustment window is displayed
by default.

Scanning

3.10

Level Adjustment

The Level Adjustment dialog box shows the distribution of brightness
levels in your image. To adjust the histogram plot, drag the triangles,
located below the horizontal bar to the desired values. The left (black)
triangle changes the shadow levels. The right (white) triangle changes the
highlight levels. The middle (gray) triangle controls the midtone levels.

By varying the Shadow and Highlight points you can change the relative
shades and highlights of the image. The Shadow point represents the
darkest value and the Highlight point is the brightest value.

The Midtone point represents the Gamma setting for your particular screen.
On the histogram, the Shadow and Highlight scales are divided into 255
units.

Therefore, all pixels in the original that are darker than the current shadow
point are now completely black in the enhanced image. Conversely, all
pixels in the original that are brighter than the current highlight point are
now completely white in the processed image.

Setting the highlight point to 200 renders all pixels greater than or equal to
200, on the original, completely white in the processed image. Similarly
setting the Shadow point to 200 renders all points less than or equal to 200,
on the original, completely black in the enhanced image. Photographers
often refer to these effects as Òhigh-keyÓ or Òlow-keyÓ. High-key is an image
pushed to the white end, and low-key is an pushed to the black end of the
tone curve.

Highlight control

Shadow control

Level Adjustment tab

Midtone (Gamma)
control

Scanning

3.11

3 Scanning

The Midtone is a relative measure of the gamma of your monitor. The scale
for Midtone ranges from 0 to 255. The gamma curve is a geometric series.
This means that at a value of 255 it tends to infinity.

The Midtone is bound by the Shadow and Highlight terms and cannot
exceed them at any time. So, if the Highlight is set to 255 and the Shadow is
set to 0, a gamma of 1 is equal to a Midtone of 128. Similarly, if the Shadow
is set at 200 (lower boundary) and the Highlight is set at 220 (upper
boundary), a gamma of 1 is equal to a Midtone of 210.

Operation:

1. Select the Advanced... button on the Balance tab. This will display the
Level adjustment window.

2. On the histogram, use the mouse key to click on the black, gray ,or white
triangles to make changes to the Shadow, Midtone and Highlight
respectively.

3. To see the changes and compare them to the original previewed image,
click on Sample 1 to see the enhanced image.

4. To make a second enhancement for comparison, click on Sample 2. Make
new enhancements to the original. Compare the images of Sample 1 and

2.

5. After completing enhancement settings, click on the desired sample to
choose the image

5. Click OK to save the changes and close the Enhancement dialog box. If
you do not want to save the changes, click on the Cancel button to close
the Enhancement dialog box. Click Auto button to allow the software to
make appropriate highlight and shadow adjustments.

Scanning

3.12

The Tonal Map is yet another way to adjust Highlight, Midtone, or Shadow
levels in your images. When you open the Tonal Map dialog box, a tonal
map consisting of a diagonally straight line appears. Notice that at every
point on the default tonal map, the output shadow, midtone, and highlight
brightness levels are equal to the input shadow, midtone, and highlight
brightness levels.

The shape and slant of the tonal map represent brightness level ratios
between the input of the original image and the output image data. By
clicking on the tonal map line, a hand-shaped cursor will appear which can
be dragged to change the shape of the tonal map line.

The horizontal axis represents the original input brightness and the vertical
axis represents the enhanced brightness. Values on either scale range from 0
to 255.

As shown in the figure below, if the curve is changed into a convex shape
above the original diagonal, the enhanced image will be brighter than the
original.

Lightened Image

Normal Image

Tonal Map tab

Tonal Map

If you select the Tonal Map tab, the following dialog box will be displayed.

Scanning

3.13

3 Scanning

Operation:

1. Click on the Tonal Map icon in the Preview window or the Tonal Map tab in
the Enhancement dialog box. The Tonal Map dialog box will appear.

2. Click on the Tonal Map curve, an indicator appears which can then be
dragged to change the shape of the curve.

a) If a previously saved Tonal Map is desired, select the Load button. An

Open dialog box appears for you to open the desired file.

b) Or, click on the Reset button to return the Tonal Map to the default

diagonal as in the original.

c) Click the Save button to save the changes as a customized setting. A Save

As dialog box will appear upon selection of this button. Enter the name
for the customized curve and click on the OK button.

3. Select the Histogram button to see a histogram of the changes made.

4. Select the OK button to accept all the changes or the Cancel button to
abandon all unsaved changes.

If the curve is changed into a concave shape below the original diagonal, the
enhanced image will be darker than the original.

Normal Image

Darkened Image

Scanning