Sharp 1255 series Manual en línea - Página 33

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Poor Scanning Result

If you get poor quality as a result of scanning a job, and you cannot improve the quality by changing preferences, refer

to the check list shown below.

CHECK1

Is the original clean?

Check your original before scanning. If any dust

sticks to the original, you cannot obtain a clean

result. In addition, make sure that the original table

is also clean.

CHECK2

Have you specified a suitable resolution?

Make sure that the value for the "Resolution" setting

in the scanner driver satisfies the requirement of the

set original.

Reference:

Scanning an Image from a TWAIN-

Compliant

Scanning an Image from a WIA-Compliant

Application (Windows

Scanning an Image from the "Scanner and

Camera Wizard" (Windows XP),

CHECK3

Have you specified a suitable value for the "B/

W Threshold" setting?

If you are scanning with a TWAIN-compliant

application and are using "Mono 2 gradation (no

Green)","Mono 2 gradation (no Red)" or "Mono 2

gradation (no Blue)" mode, make sure that a

suitable value is specified for the "B/W Threshold"

setting. A larger threshold value makes your output

darker, whilst a small threshold value makes it

lighter. To adjust the threshold automatically, click

the "Auto Threshold" button on the "Image" tab of

the "Professional" screen.

Reference:

Scanning an Image from a TWAIN-

Compliant Application

Application,

XP),

CHECK4

Have you adjusted the brightness and

contrast suitably?

If you are scanning with a TWAIN-compliant

application and the resulting image has unsuitable

brightness or contrast (for example it is too bright),

activate the "Auto Brightness/Contrast Adjustment"

setting on the "Main" tab of the

Click the

"Brightness/Contrast" button

brightness and the contrast viewing the scanned

output image on the screen.

If you are scanning with a WIA-compliant

application or the "Scanner and Camera Wizard",

click

"Adjust the quality of the scanned picture"

the

"Custom settings"

brightness and contrast in the screen that appears.

If part of the image from the back side of the original

appears in the preview scan.

If you are using a TWAIN-compliant application and

the back side of the original appears faintly in the

preview image, try adjusting the Brightness and

Contrast settings.

Click the

"Brightness/Contrast" button

Preview screen to change to the Brightness/

Contrast screen, and adjust the "Brightness" and

"Contrast" values. A preview of the image using the

new values appears under "After". When the image

of the back side disappears and you can get only

the needed image, click the "Apply" button to apply

the new setings, and then click the "Scanning"

button to scan the image.

CONTENTS

"Professional"

to adjust the

button, and adjust the

in the

INDEX

screen.