5. Scanning-specific Adjustments

(2) When scanning the original, press the [COMMON SETTING] button on the Control Panel. Select a higher resolution in the resolution option.

*"200 (dpi)" is selected from among the resolution options by default. If noise occurs in a resolution of 200 dpi, select a higher resolution (300 dpi, 400 dpi or 600 dpi).

After changing the resolution, scan the original and check the scanned-in image quality.

If further image quality adjustments are still necessary, use procedure (1).

(3) Enter the setting mode [08]. Change the value for the code [8304] to change the JPEG compression ratio.

Compression

 

[08] code

 

 

Subcode

 

Recommended

Acceptable

 

Default

 

ratio

 

 

 

 

value

range value

 

 

 

 

 

 

 

 

 

 

 

High quality

 

 

 

0

 

Set a value smaller

 

 

 

 

 

 

 

 

than 128 for higher

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

08-8304

 

 

 

 

compression ratio.

 

 

 

 

Standard

 

1

 

0 to 255

128

 

 

 

Set a value larger

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low quality

 

 

 

2

 

than 128 for lower

 

 

 

 

 

 

 

 

compression ratio.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

‰Caution after the adjustment

• The adjustment of the compression rate or resolution may possibly increase the size of the file to be stored. Therefore, carefully perform the adjustment, while checking the scanned-in image quality. The table below shows you the correlation between a resolution and file size. (The ratio of the file size may vary depending on the type of original. Therefore, use the table below just for your reference.)

*The file size in a resolution of 200 dpi is 1.

Resolution

File size ratio

200 dpi

1

300 dpi

Approx. ⋅ 2

400 dpi

Approx. ⋅ 3

600 dpi

Approx. ⋅ 8

• If the resolution selected in procedure (2) is too high, moiré may possibly occur in the scanned-in image. Therefore, carefully adjust the resolution, while checking the scanned-in image.

‰Remarks

Use the following steps to change the default compression rate and resolution options:

(a)Press the [USER FUNCTIONS] button on the Control Panel to enter the "User Functions" menu.

(b)Press the [USER] tab.

(c)Press the [SCAN] button.

(d)In the " COMPRESS" or "RESOLUTION" option, press the button corresponding to the desired compression rate or resolution option.

*The default resolution can be selected on a color mode basis: Full color mode (including the Auto color mode), Gray scale mode and Black mode.

The following resolution options are available as the default:

• Full color mode (including the Auto color mode):

600 / 400 / 300 / 200 / 150 / 100 (dpi)

• Gray scale mode:

600 / 400 / 300 / 200 / 150 / 100 (dpi)

• Black mode:

600 / 400 / 300 / 200 / 150 / 100 (dpi)

e-STUDIO5520C/6520C/6530C

© 2008 TOSHIBA TEC CORPORATION All rights reserved

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Toshiba 6520c, 5520c manual ‰ Caution after the adjustment, Resolution File size ratio

6520c, 5520c specifications

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