Toshiba 5520c, 6520c

5-2

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

ratio [08] code Subcode Recommended

value

Acceptable

range value Default

High quality 0

Standard 1

Low quality

08-8304

Set a value smaller

than 128 for higher

compression ratio.

Set a value larger

than 128 for lower

compression ratio.

0 to 255 128

 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.

(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)