Epson ET-3750 Error 0x7D99
If you own an Epson ET-3750 printer and come across an error code 0x7D99 with the message “Additional cassette error”, it indicates a problem with the optional cassette feature. This error typically occurs due to a malfunction in the connector part or the main board of the optional cassette, or even a failure of the printer’s main board.
To troubleshoot this issue, there are a few steps you can follow:
1. Check the connector part: Ensure that the optional cassette is properly connected to the printer. Disconnect and reconnect it to ensure a secure and stable connection. Check for any loose or damaged parts within the connector.
2. Inspect the optional cassette’s main board: Examine the main board of the optional cassette for any visible signs of damage, such as burnt parts or loose connections. If any issues are detected, it may require professional repair or replacement.
3. Investigate the main board of the printer: If the problem persists, there might be a fault in the printer’s main board. Unfortunately, this is a more serious issue that may require expert assistance. Contact Epson customer support or a qualified printer technician to diagnose and fix the main board problem.
It’s important to note that troubleshooting steps may vary depending on your specific printer model, so referring to the printer’s user manual or contacting Epson support could provide further guidance.
Dealing with errors can be frustrating, but taking these troubleshooting measures can help determine the cause of the issue and potentially resolve it. Remember, seeking professional assistance is always a viable option when dealing with intricate printer problems.
| Printer Model | Epson ET-3750 |
| Error Code | 0x7D99 |
| Display on | PRINTER |
| Description and troubleshooting | Additional cassette error. Failure of the connector part of option cassette. Failure of the main baord of the option cassette. Failure of the main board. |
