Canon imageFORMULA DR-2050C Manuale di manutenzione - Pagina 22

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Symptoms The scanned image is abnormal for certain documents.

Problem

Functions such as [Auto-detection], [Deskew], or [Border

Removal] were used when scanning documents containing

text or photos up to their edges. (The scanner cannot

accurately process the edges of documents.)

Solution

Turn off functions such as [Auto-detection], [Deskew], or [Border

Removal] when scanning documents containing text or photos up

to their edges. (See "Software Settings," on p. 49.)

Symptoms The scanned image is abnormal in some applications.

Problem

A function not supported by the application was used.

Solution

Some applications do not support functions such as auto-detection

of the paper size. Scanning documents with an application such as

this will result in an abnormal scanned image. Try scanning with

auto-detection of the paper size set to "off."

Adjusting the Scanner

To adjust the scanner, set the supplied Adjustment Sheet (Shading Sheet) in the

scanner. Orient the adjusting sheet in the direction indicated by the arrow when

setting it in the scanner. After setting the Adjustment Sheet in the scanner, click

the Windows [Start] button, and then click [Programs] (All Programs in the

case of Windows XP)

2080C Adjustment Tool], or use the [Scanner Adjustment] function of the ISIS/

TWAIN driver. Follow the instructions on the dialog box that appears on the

screen to adjust the scanner. Refer to Help for the ISIS/TWAIN driver for

information about the ISIS/TWAIN driver [Scanner Adjustment].

Adjustment Sheet

(Shading Sheet)

CAUTION

Before performing scanner adjustment, be sure to clean the

scanning glass (see p. 59). Attempting to perform scanner

adjustment while the scanning glass is dirty can cause vertical

lines in the scanned image. Note that performing scanner

adjustment will cause previous adjustment data to be deleted.

Once deleted, adjustment data cannot be recovered.

[Canon Document Scanner], and then [DR-2050C &

Appendices