Canon PIXMA MP450 User Manual download pdf (Page 117)

Chapter 11 115

Troubleshooting

 Scan Quality Is Poor (Poor Image Displayed On The Monitor)

 Parts Of Image Missing Or Surrounded By Extra White Areas

Cause Action

Incorrect scan settings. Rescan with adjusted settings. (See the Scan Guide)

Specification of the application

program.

Some application programs do not display the image clearly if the image

is too small. Set the view mode to 100%.

Moiré appears. Select [Magazine (Color)] for Select Source in the Simple Mode or turn on

the [Descreen] option in the Advanced Mode of ScanGear MP. Turn off the

[Unsharp Mask] function if the moiré effect is still too strong even when

the Descreen option is on. (See the Scan Guide)

Inappropriate display settings.

Set the display settings on your computer to Medium (16 bit) or higher.

In the [System Preferences] dialog, click the [Displays] icon and select the

[Display] tab. Set the [Colors] list box to [Thousands] or a higher setting.

Dirty Platen Glass or Document

Cover.

Clean the Platen Glass or the Document Cover of the machine, taking

special care not to press strongly on the Platen Glass.

The status of the original is poor. Scan with certain functions such as Remove Dust and Scratches, Fading

Correction or Grain Correction in the Image Settings section of the

Advanced Mode of ScanGear MP.

Note

If the printout of an image does not appear satisfactory or the same as

what you see on the monitor, you may need to change the machine's

settings, or the machine itself may have some problems.

Cause Action

Scan area was specified larger than

the original.

Specify the scan area appropriately.

If you click the Auto crop button of the ScanGear MP, the scan area is

adjusted autmatically to match the size of the original. When scanning an

original surrounded by white borders such as a photo print, of if you

otherwise want to specify a custom scan area, specify the scan area

manually. Refer to the Scan Guide for details on manual scan area

specification.

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Canon PIXMA MP450 User Manual Page 117