Troubleshoot EP0NM40F.DLL Errors and Download File

Sometimes Windows system displays error messages regarding corrupted or missing EP0NM40F.DLL files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent EP0NM40F.DLL file can therefore effect in failed execution of the started process.

EP0NM40F.DLL file EPSON Printer Driver. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of EP0NM40F.DLL related errors on your device. You can also download EP0NM40F.DLL file compatible with Windows 7, Windows Vista devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 7, Windows Vista

File info

General information
Filename EP0NM40F.DLL
File extension DLL
Description EPSON Printer Driver
Program EPSON Printer Driver
MIME type application/octet-stream
File type Driver
System Windows NT 32-bit
Copyrights © SEIKO EPSON CORPORATION 2004. All rights reserved.
Character set Unicode
Language cod English (U.S.)

There are various types of errors related to EP0NM40F.DLL file. EP0NM40F.DLL file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to EP0NM40F.DLL file. If you encounter one listed below (or similar), please consider the following suggestions.

  • EP0NM40F.DLL is corrupted
  • EP0NM40F.DLL cannot be located
  • Runtime Error - EP0NM40F.DLL
  • EP0NM40F.DLL file error
  • EP0NM40F.DLL file cannot be loaded. Module was not found
  • cannot register EP0NM40F.DLL file:
  • EP0NM40F.DLL file could not be loaded
  • EP0NM40F.DLL file doesn't exist



Application could not be started because EP0NM40F.DLL file is missing. Reinstall the application to solve the problem.


Problems related to EP0NM40F.DLL can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing EP0NM40F.DLL file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

EP0NM40F.DLL file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with EP0NM40F.DLL file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to EP0NM40F.DLL file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of EP0NM40F.DLL or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to EP0NM40F.DLL file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the EP0NM40F.DLL file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the EP0NM40F.DLL file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the EP0NM40F.DLL file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace EP0NM40F.DLL file

The last solution is to manually download and replace EP0NM40F.DLL file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded EP0NM40F.DLL file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of EP0NM40F.DLL file example directory paths.

  • Windows 7: C:\Windows\System32\DriverStore\FileRepository\prnep00d.inf_amd64_neutral_dd61103f3a2743d4\Amd64\
  • Windows Vista: C:\Windows\System32\DriverStore\FileRepository\prnep001.inf_22b38952\Amd64\

If the steps did not solve your EP0NM40F.DLL file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename EP0NM40F.DLL
System Windows 7
File size 69120 bytes
Date 2009-07-14
File details
MD5 8a7a847d477b7b7c9ea4c62642b47c94
SHA1 744493a8f55f7bc7123cb26809b5ce55ac35af65
SHA256 b16fe818fe19f87d2882e557cc2d9ff2aea2955b4dba54948e9b44d3d206762d
CRC32 fdf78444
Example file location C:\Windows\System32\DriverStore\FileRepository\prnep00d.inf_amd64_neutral_dd61103f3a2743d4\Amd64\
Filename EP0NM40F.DLL
System Windows Vista
File size 63488 bytes
Date 2006-11-02
File details
MD5 ea7dfe2194a7688d8053354268a49b30
SHA1 4a0656273acb86e7f449ae8780a8cec911f63ade
SHA256 a57652c81708cbf109516cf5bf10744614080f0d5aaf8951cd8da4a66b389b9f
CRC32 e42105b6
Example file location C:\Windows\System32\DriverStore\FileRepository\prnep001.inf_22b38952\Amd64\