Solution
If you connect the machine to a USB 2.0-equipped computer, you may not be able to scan.
If your PC is equipped with two or more USB ports, try connecting the machine to another USB port.
If the problem persists, follow the procedure below to modify the INI file. It is recommended to make a backup copy of the file before making any changes to it.
1. Open the following file in Notepad or another text editor application.
Windows 98/Me:
windows\system\CNCMFP23.ini
Windows 2000:
winnt\system32\CNCMFP23.ini
Windows XP:
2. In the [ScanSize] section, change [Read512Bytes=0] to [Read512Bytes=1], then save the file. Take care not to modify any other parts.