Slow Scanning Speed - Canon PIXMA MP450 User Manual

Trouble scanning with Multi-Scan or Multi-Crop function
Cause
The original is positioned
outside the supported area.
Error arising from
application software
specifications.

Slow Scanning Speed

Cause
Resolution is set higher than
necessary.
The descreen function is on.
116
Troubleshooting
Check the position of the original on the document glass. Observe the following
when using the Multi-Scan or Multi-crop function.
There should be a gap of at least 0.4" / 10mm between the edge of the Platen
Glass and originals.
Leave at least 0.4" / 10mm between the originals.
A maximum of 10 originals can be scanned at once.
If an original is slightly crooked on the platen-within 10 degrees of true-the
image is automatically straightened.
The Multi-Scan function only works with rectangular originals such as photos.
Originals that are not rectangular (irregularly shaped, close-cropped photos)
cannot be detected correctly.
Some application softwares do not support multiple image scanning. Scan each
item individually without using the Multi-Scan or Multi-Crop function.
To view the image on a monitor, set the Output resolution to 75 dpi. To
print, set the Output resolution to a value such as 300 dpi.
Turn the [Descreen] function off. (See the Scan Guide)
Action
Action
Chapter 11