Epson WF-R4640 User Manual - Page 283
File Max Size, Wi-Fi/Network Settings
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Code 311 321 411 421 312 412 313 413 314 315 327 322 323 324 325 328 331 332 333 334 Condition/solution A DNS error has occurred. Check the DNS settings for the server, computer, or access point. Select Setup > System Administration > Wi-Fi/Network Settings > Advanced Setup > DNS Server. An authentication error has occurred. Check the Email Server Settings in the Setup menu. A communication error has occurred. Check the server settings or network connection by running a connection check. If you selected Off as the authentication method, make sure you select None for the email server authentication method. The data size exceeds the maximum size for the attached files. Increase the Attached File Max Size setting in the scan settings or lower the file size of the scanned image. The memory is full. Retry after current jobs have finished processing. An authentication error occurred. Check the Location settings for scanning to Network folder/FTP. A communication error has occurred. Check the Location settings for scanning to Network folder/FTP or the network connection. A file with the same name already exists in the specified folder. Delete the duplicate file or change the file name prefix in File Settings for scanning. There is not enough storage space available in the specified folder. Increase the storage space in the folder, delete unnecessary files, or lower the file size of the scanned image. The destination was wrong or the destination does not exist. Check the Location settings for scanning to Network folder/FTP. A communication error occurred while acquiring the destination list. Make sure the product is connected to the network correctly. There is not enough space available for saving the scanned files in the specified folder. Delete unnecessary files from the specified folder. The destination could not be found because the destination information was uploaded to the server before sending the scanned data. Select the destination again. An error occurred while sending the scanned data. 283