Canon MP390 Guia do Utilizador descarregar pdf (Página 142)

140 Troubleshooting Chapter 13

The hard disk does not have

enough available memory.

Check that the hard disk has enough available memory, in particular

when scanning large documents at a high resolution. For example, a

letter-size document scanned at 600 dpi, color requires a minimum

of 300 MB of memory. If you do not have enough available memory,

scan the document at a lower resolution.

The resolution is low. If the image looks pixilated, increase the scan resolution.

(See Software Guide, located on your Setup CD-ROM)

The image is not displayed at

100% magnification in the

application.

Display the image at 100% magnification. Some applications do not

display a small image very well.

There is moire when you scan

printed material.

In ScanGear MP, click [Descreen]. (See Software Guide, located on

your Setup CD-ROM)

The monitor display colors are set

too low.

In [Display Properties] of your computer, set the display colors to

16-bit color, 24-bit color or higher.

The scanning area is not specified. In ScanGear MP, click [Multi-Scan] to automatically specify the

scan area.

If there are white margins around documents such as photographs, or

if you want to trim a document (i.e. you want to scan only one part

of a document), specify the area of the scan manually. (See Software

Guide, located on your Setup CD-ROM)

The scanned area does not cover

the entire document.

Place the document approximately 1/8 in. (3 mm) away from the

front and right edges of the platen glass.

The color tone displayed in the

preview screen differs from that of

the original.

Perform calibration to scan the image with the correct color tone.

(See Software Guide, located on your Setup CD-ROM)

A cause other than the above is

suspected.

Restart the computer.

Cause Action

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Canon MP390 Guia do Utilizador Página 142