How To Make Epson WF-7820, WF-7840, WF-7845 Chipless Firmware


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Installing a chipless firmware on an Epson printer involves modifying the printer's firmware to remove the requirement for ink cartridges with chips. This is not a recommended procedure as it may void your printer's warranty and it can also potentially damage your printer. Additionally, using chipless firmware may also violate Epson's terms of service and could potentially lead to legal issues.

If you still want to proceed with installing a chipless firmware for your Epson WF-7820, WF-7840 or WF-7845 printer, you can follow these general steps:

1. First, you will need to download the Chipless firmware software from a reputable source.

2. Once you have downloaded the software, extract the files to a folder on your computer.

3. Next, connect your printer to your computer using a USB cable and make sure it is powered on.

4. Launch the Chipless firmware software and select your printer model from the list of supported printers.

5. Follow the on-screen instructions carefully to install the firmware on your printer. During the installation process, make sure not to turn off your printer or disconnect it from your computer.

6. Once the firmware installation is complete, disconnect your printer from your computer and turn it off for a few seconds.

7. Turn the printer back on and check if it is now recognizing ink cartridges without chips.

Again, it is important to note that installing chipless firmware may potentially damage your printer and may also void your warranty. Therefore, it is recommended to only perform this procedure if you fully understand the risks involved and are willing to accept the consequences of any potential damage or legal issues that may arise
To install Chipless Firmware to Epson WF-7820, WF-7840, WF-7845 printers, You have reprogram 2 chips on printers main board.
You can buy 2 bin files here -

These bin files will enable you to make your Epson WF-7820, WF-7840, WF-7845 chipless for ink cartridges chips only.
You have to be a trained technician who knows how to work with reprogrammers, as you will need to desolder 2 IC chips and reprogram them, and then solder them back onto the printer board.

Once you have modified your printer to a chipless version, your printer will be defined as L15150 or ET-16600 and will no longer ask for cartridge replacement. Install printer drivers L15150 or ET-16600 and Your printer is ready to work.

P.S. Feedback from our customer:
the video is with the rt809f programmer, but it did not work on the w25q512jv chip
there are 2 chips to program. w25q128 and w25q512. the former is programmable with most programmers supporting chips up to 256MB. like the famous CH341a. but only the rt809H in my case managed to program the flat 512 chip

Tutorial Video:
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What are the risks of installing chipless firmware?

The risks of installing a chipless firmware on your Epson printer include:

1. Voiding the warranty: Modifying the firmware of your printer may void its warranty. This means that if something goes wrong with your printer, you will not be able to claim a warranty or get free repairs.

2. Potential damage to the printer: There is a risk that installing chipless firmware may cause damage to the printer's hardware or software, which could render the printer unusable.

3. Legal issues: The use of chipless firmware may violate Epson's terms of service, and it could potentially lead to legal issues.

4. Incompatible ink: Using non-genuine ink cartridges that are not specifically designed for your printer may cause a range of issues, including poor print quality, clogging of the printhead, and the potential for leaks.

5. Security issues: Modifying the firmware of your printer can also potentially open up security vulnerabilities that may be exploited by hackers to gain access to your network or computer.

In summary, installing chipless firmware on your Epson printer carries significant risks, including potential damage to the printer, voiding the warranty, and legal issues. It is important to carefully consider these risks before deciding to proceed with the installation.

What are the security risks of using non-genuine ink cartridges?
Using non-genuine ink cartridges can pose several security risks, including:

1. Malware injection: Non-genuine ink cartridges may contain firmware or software that can inject malware into your printer or computer. This can potentially compromise the security of your network or system.

2. Data theft: Malware injected through non-genuine ink cartridges can potentially steal sensitive data, such as login credentials, personal information, and financial data.

3. Network intrusion: Malware injected through non-genuine ink cartridges can potentially provide hackers with a backdoor to your network, allowing them to gain access to other devices on the network.

4. Unauthorized access: Malware injected through non-genuine ink cartridges can potentially allow unauthorized access to your printer or computer, allowing hackers to control your devices or steal data.

It is important to use genuine ink cartridges that are specifically designed for your printer to minimize the risk of security issues. Genuine ink cartridges are typically tested and certified by the printer manufacturer to ensure compatibility and security. Additionally, keeping your printer firmware and software up to date can also help to minimize the risk of security issues.