Computer Stops Operating During Scanning; Scan Quality Is Poor (Poor Image Displayed On The Monitor) - Canon PIXMA MP500 User Manual

Cause
The Feature of the application
software does not support TWAIN.
An error message appears and the
ScanGear MP window fails to
appear.

Computer stops operating during scanning

Cause
Output Resolution set too high.
The hard disk does not have enough
available space.
Multiple devices connected to the
USB port.

Scan quality is poor (Poor image displayed on the monitor)

Cause
The resolution is low.
Specification of the application
software.
Moiré appears.
Inappropriate display settings.
Dirty document glass or document
cover.
Chapter 11
Start ScanGear MP from within a TWAIN compatible software.
Reattaching the USB cable. Be sure to use a certified USB 2.0 Hi-Speed
cable. You are recommended to use the cable no longer than 9.8 feet (3
meters).
If a USB hub is used for the connection, do not use it. Attach the cable
to a USB port on the computer itself (not the hub).
Attach the USB cable to a different USB port on the computer itself (not
a hub).
Set the Setup CD-ROM and install the software.
Select this machine in [Select Source] or [Import] in your application
software.
Make sure that your application software supports TWAIN. You cannot
start ScanGear MP from within an applilcation software that does not
support TWAIN.
Reboot the computer, lower the Output Resolution and rescan.
Reset and reboot the computer, delete unnecessary files and
application softwares, and rescan.
Open ScanGear MP from within the application software, click the
[Preferences] button in the Advanced Mode, and change the folder
listed in the [Select Folder Where Temporary Files are Saved] category
to one on a disk with sufficient free space.
Disconnect all other devices but the machine from the port.
If the image looks grainy, increase the scan resolution.
For details, refer to the Scan Guide.
Some application software does not display the image clearly if the image
is too small. Set the view mode to 100%.
Set [Descreen] to [ON] in the [Image Settings] section of the Advanced
Mode of ScanGear MP.
Note
Moiré may appear when you scan digital photo prints.
Set your display settings on your computer to Medium (16 bit) or higher.
In the [Start] menu click [Control Panel], then [Appearance and Themes]
and then [Display], and on the [Settings] sheet, set [Color quality] to
[Medium (16 bit)] or [Highest (32 bit)] or a higher setting.
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.
Refer to "Cleaning Your Machine" to clean them.
Action
Action
Action
Troubleshooting 127