Cannot Scan a Document - LASER CLASS 650i

Is the scanner driver properly installed on your computer?

NO

Uninstall the scanner driver and install it again.

"Uninstalling the Software"

"Installing the Drivers and Software"

YES

Is your environment IPv6?

YES

You may not be able to use the scan function over an IPv6 connection. Use the function over a USB or IPv4 connection.

NO

Is your computer working properly?

NO

Restart your computer.

YES

Has the MF Toolbox been installed?

NO

Install it.

"Installing the Laser MFP Drivers and MF Toolbox"

YES

Is the machine registered in the MF Network Scan Utility?

NO

Register the machine.

"Registering the Scanner in MF Network Scan Utility"

YES

Are ten or fewer computers connected to this machine over the network?

NO

Reduce the number of computers connected to this machine over the network.

"Registering the Scanner in MF Network Scan Utility"

YES

Is the document source specified correctly in the MF Toolbox, ScanGear MF, or WIA driver?

NO

Select the platen glass or feeder.

YES

Is your USB hub or repeater working properly?

NO

Connect the USB cable directly to a computer and scan your document to see if it works properly. If the scan completes successfully, make sure that your USB hub or repeater works properly.

YES

Are you using a USB 2.0-compatible USB hub?

YES

Follow the steps in the procedure below:

Connect a USB cable directly to the computer.

If your computer has two or more USB ports, connect the machine to another USB port.

If the problem still persists, follow the steps in the procedure below to modify the INI file. We recommend that a backup copy of the file be created before modifying the file.

(1) Open the following files in Notepad or a text editor application.

Windows XP/Vista/7
windows\system32\CNCMFP38.INI

(2) In the [ScanSize] section, change "Read512Bytes=0" to "Read512Bytes=1" and save the file. Do not modify any other parts.

NO

After installing the software that comes with this machine, did you install a TWAIN-compatible application?

YES

There is a possibility that TWAIN may have been replaced by a wrong one. If this happens, you are unable to perform a scan. To solve the problem, uninstall the software and install it again.

"Uninstalling the Software"

"Installing the Drivers and Software"

NO

Is the machine recognized in [Scanners and Cameras] in Windows?

NO

Make sure the machine is recognized.

(1) Open the [Scanners and Cameras] folder or [Scanners and Cameras Properties] folder.

"Basic Windows Operations"

(2) The machine is recognized when the driver for the machine is displayed. If not, uninstall the software and install it again.

"Uninstalling the Software"

"Installing the Drivers and Software"