Canon PIXMA MP500 User Manual

Also see for PIXMA MP500: Supplementary guide Specification sheet Start here Service manual User guide

Contents

Canon PIXMA MP500 User Manual Manual pdf 129 page image

Chapter 11 127Troubleshooting Computer stops operating during scanning Scan quality is poor (Poor image displayed on the monitor)The Feature of the applicationsoftware does not support TWAIN.Start ScanGear MP from within a TWAIN compatible software.An error message appears and theScanGear MP window fails toappear.z Reattaching the USB cable. Be sure to use a certified USB 2.0 Hi-Speedcable. You are recommended to use the cable no longer than 9.8 feet (3meters).z If a USB hub is used for the connection, do not use it. Attach the cableto a USB port on the computer itself (not the hub).z Attach the USB cable to a different USB port on the computer itself (nota hub).z Set the Setup CD-ROM and install the software.z Select this machine in [Select Source] or [Import] in your applicationsoftware.z Make sure that your application software supports TWAIN. You cannotstart ScanGear MP from within an applilcation software that does notsupport TWAIN.Cause ActionOutput Resolution set too high. Reboot the computer, lower the Output Resolution and rescan.The hard disk does not have enoughavailable space. z Reset and reboot the computer, delete unnecessary files andapplication softwares, and rescan.z Open ScanGear MP from within the application software, click the[Preferences] button in the Advanced Mode, and change the folderlisted in the [Select Folder Where Temporary Files are Saved] categoryto one on a disk with sufficient free space.Multiple devices connected to theUSB port.Disconnect all other devices but the machine from the port.Cause ActionThe resolution is low. If the image looks grainy, increase the scan resolution.For details, refer to the Scan Guide.Specification of the applicationsoftware.Some application software does not display the image clearly if the imageis too small. Set the view mode to 100%.Moiré appears. Set [Descreen] to [ON] in the [Image Settings] section of the AdvancedMode of ScanGear MP.NoteMoiré may appear when you scan digital photo prints.Inappropriate display settings.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.Dirty document glass or documentcover.Refer to "Cleaning Your Machine" to clean them.Cause Action