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Messages Displayed on the Client Computer

This section describes likely causes of and possible solutions for the main error messages displayed on the client computer when you use the TWAIN driver. If a message not described here appears, follow the instruction.

Message

Cause

Solution

“Any of Login User Name, Login Password or Driver Encryption Key is incorrect.”

The entered login user name, password, or driver encryption key was invalid.

Check your login user name, login password, or driver encryption key, and then enter them correctly. For details about login user name, login password, and driver encryption key, see "Basic Authentication" and "Encrypting Transmitted Passwords", Security Guide.

“Authentication succeeded. However, the access privileges for scanner function has been denied.”

The logged in user name does not have permissions for scanner function.

For details about how to set permissions, see "Configuring Administrator Authentication", Security Guide.

“Exceeded the maximum number of scan modes to save. Reenter after deleting.”

The maximum number of registrable scan modes has been exceeded.

The maximum number of modes that can be stored is 100. Delete unneeded modes.

“Cannot detect the paper size of the original. Scanning will be cancelled.”

The set original was misaligned.

  • Place the original correctly.

  • Specify the scan size.

“Error has occurred in the scanner.”

The application-specified scan conditions have exceeded the setting range of the machine.

Check whether the scanning settings made with the application exceed the setting range of the machine.

“Fatal error has occurred in the scanner.”

An unrecoverable machine error has occurred.

An unrecoverable machine error has occurred. Contact your service representative.

“Insufficient memory. Reduce the scanning area.”

Scanner memory is insufficient.

  • Reset the scan size.

  • Lower the resolution.

  • Set with no compression. For details about the settings, see TWAIN driver Help.

The problem may be due to the following:

  • Scanning cannot be performed if large values are set for brightness when halftone or high resolution is used. For details about the relationship between scan settings, see "Relationship between Resolution and Scan Size", Scan.

  • If a misfeed occurs, you might not scan an original. Remove the misfeed, and then scan the original again.

“There is no response from the scanner.”

The machine or client computer is not connected to the network correctly.

  • Check whether the machine or client computer is connected to the network correctly.

  • Disable the client computer's own firewall. For details about firewall, see Windows Help.

“There is no response from the scanner.”

The network is crowded.

Wait for a while, and then connect to the network again.

“Scanner is not available. Scanner memory is in use for other function.”

A function of the machine other than the Scanner function is being used such as the Copier function.

  • Wait for a while, and then connect to the network again.

  • Cancel the job that is being processed. Press the [Stop] key. Follow the instructions in the message that appears and exit the function that is running.

“Scanner is not available on the specified device.”

The TWAIN scanner function cannot be used on this machine.

Contact your service representative.

“Scanner is not ready. Check the scanner and the options.”

The original cover is open.

Check whether the original cover is closed.

“The scan mode name already exists. Do you want to overwrite it?”

You tried to register a name that is already in use.

Use another name.