Epson Wfc5790 Admin Password May 2026
There’s no secret magic password like epson or administrator for the WFC5790. But with the button-press factory reset above, you can bypass the admin lock in under two minutes.
Have you successfully reset your WFC5790? Let us know which method worked in the comments below.
Disclaimer: These resets are intended for devices you own or are authorized to administer. Do not use this information to bypass security on printers you do not own.
This guide covers the default credentials, why they exist, how to reset a forgotten password, and critical security notes for network administrators.
By following these steps, you should be able to reset the admin password on your Epson WorkForce Pro WFC5790 printer.
This is the most searched topic regarding this printer, and the solution is where Epson’s strict security becomes a double-edged sword.
If you lose the admin password for the WF-C5790, you cannot simply look it up or use a generic backdoor code.
The Hard Truth: To reset a forgotten admin password on the WF-C5790, you generally have two options:
The default administrator password for the Epson WorkForce Pro WF-C5790 Go to product viewer dialog for this item.
is typically the product's serial number. This is an 8-to-10-digit alphanumeric code usually found on a sticker on the back or side of the printer. Password Quick Reference Default Password: Serial Number (case-sensitive).
Older Firmware/Models: Some users report admin or access as legacy defaults, though the serial number is the current standard for this series. Web Config Username: admin or EPSONWEB. Review of the Security System
The transition to using serial numbers as default passwords is a significant security improvement over generic defaults like "1234." However, it presents a few usability hurdles: epson wfc5790 admin password
Physical Accessibility: If the printer is installed in a tight cabinet or mounted, reading the serial number from the rear label can be frustrating without moving the entire unit.
Input Friction: Entering a long, case-sensitive alphanumeric string on the printer’s small touchscreen is prone to typos compared to a standard word-based password.
Firmware Updates: Epson frequently prompts for this password during firmware updates. If you have changed the password and forgotten it, you may be locked out of critical security patches. How to Change or Reset
If you find the serial number cumbersome, you can update it via the control panel:
Navigate to Settings > General Settings > System Administration. Select Security Settings > Admin Settings > Admin Password. Choose Register or Change to set a new custom password.
If you have forgotten a custom password, you will likely need to contact Epson Support for a master reset, as there is no user-accessible "hard reset" button for the admin password on this model.
Are you having trouble accessing the web interface specifically, or are you locked out of the physical control panel?
Controlling a Networked Projector Using a Web Browser - Epson
The default administrator password for the Epson WorkForce Pro WF-C5790 Go to product viewer dialog for this item. is the product's Serial Number. Locating the Default Password
Where to find it: The serial number is located on a sticker attached to the product.
Common locations: Look on the back, bottom, or on the side inside the cover. There’s no secret magic password like epson or
Format: It is typically a 10-character alphanumeric string. If there is a separate label marked "Password," use the 8-digit number shown on that label instead. Accessing Admin Settings On the Control Panel: Press the Home button.
Navigate to Settings > General Settings > System Administration > Security Settings > Admin Settings. Via Web Config: Open a web browser and enter the printer's IP address. The User Name is usually left blank or set to admin. Enter the Serial Number as the password. How to Reset a Forgotten Password
If the default password has been changed and lost, you can attempt a "User Special Mode" reset: Turn the printer off.
Press and hold the # button and the Power button simultaneously until the User Special Mode menu appears.
Use the keypad (buttons 3 and 6) to select Password Initialization.
Press the Color button to select it, then the Stop button to confirm.
Press Power to complete the process and restart the printer.
For further details, you can consult the official Epson WF-C5790 Support Page or download the full User's Guide.
The quest for the Epson WF-C5790 admin password usually starts with the factory defaults, but it can quickly turn into a puzzle depending on when your unit was manufactured. The "Magic" Defaults
Most users find success with these standard combinations provided by Epson Support:
The Serial Number: For newer models, the default password is the product's serial number, which you can find on a sticker on the back or side of the printer. Disclaimer: These resets are intended for devices you
The "admin" Classic: On older firmware versions, the username is often admin and the password is admin.
Accessing via Web Config: If you are logging in through a browser (Epson Web Config), try the username admin and the password admin, or leave the username blank and use admin as the password. Troubleshooting the "Locked Out" Scenario
If the defaults don't work, someone likely changed it during setup. Here is how to dig deeper:
Check for a Physical Label: Some units ship with a specific "Password" label attached near the serial number—look for an 8-digit code Epson Troubleshooting.
Network Status Sheet: Print a network status sheet from the control panel (Settings > General Settings > Network Settings > Print Status Sheet). Sometimes, the current admin status or "locked" flags are visible here.
The Nuclear Option (Factory Reset): If you're completely locked out of the admin menus, you may need to perform a full system reset. Note that this wipes your network settings, scan-to-email configurations, and address books.
Navigate to Settings > General Settings > System Administration > Restore Default Settings. Security Tip
Once you get in, it is highly recommended to register a new password through the Security Settings menu. This prevents unauthorized users from changing your network configuration or viewing usage logs.
While there isn't a single famous academic "paper" on this specific printer model, the most useful document for this issue is the Official Epson Technical Service Guide.
Below is a summary of the technical documentation regarding the Epson WorkForce Pro WF-C5790 admin password, structured as a technical brief.
