How to Fix Epson Event Manager Permissions on macOS Sequoia & Sonoma

1. The Symptom: Unresponsive Hardware Buttons & Repeated Permission Prompts

On macOS 15 Sequoia and macOS 14 Sonoma, users frequently experience an issue where pressing the physical scan button on an Epson scanner does nothing, or macOS continually presents a prompt asking to grant Accessibility or Input Monitoring permissions even after the permission was supposedly allowed.

2. Why Modern macOS Blocks Event Manager

Apple's Transparency, Consent, and Control (TCC) security framework monitors background processes that capture keystrokes, mouse events, or peripheral hardware interrupts. Because Epson Event Manager must listen in the background for hardware button presses sent over USB or local network sockets, macOS classifies this activity under Input Monitoring and Accessibility.

If a macOS software update (e.g. from Sonoma 14.4 to 14.5, or to Sequoia 15.0) refreshes system security certificates, existing application tokens can become invalidated, resulting in a silent permission block.

3. Fix 1: Enabling Accessibility & Input Monitoring

1. Click the Apple Logo in the top-left menu bar and select System Settings.
2. Scroll down the left sidebar and select Privacy & Security.
3. Click on Accessibility:
   • Look for Epson Event Manager.
   • If the toggle is OFF, click it to turn it ON (enter your Mac password or Touch ID when prompted).
   • Important: If it is already ON, toggle it OFF, wait 5 seconds, and toggle it back ON. This forces macOS to regenerate the security token.
4. Return to Privacy & Security and click Input Monitoring:
   • Ensure Epson Event Manager is toggled ON.
   • If prompted with *"Epson Event Manager will not be able to monitor input until it is quit"*, click Quit & Reopen.

4. Fix 2: Resetting Corrupted TCC Security Tokens (Terminal Command)

If the permission prompt loops repeatedly, macOS has cached an orphaned signature for Event Manager. You can completely reset the application's TCC permissions using Terminal:

1. Open Terminal from your Applications > Utilities folder.
2. Paste the following command to reset Event Manager accessibility permissions:

   tccutil reset Accessibility com.epson.eventmanager

3. Next, reset Input Monitoring:

   tccutil reset ListenEvent com.epson.eventmanager

4. Relaunch Epson Event Manager from your Applications folder. When prompted by macOS, click Open System Settings and grant access. The token will now register cleanly.

5. Fix 3: Granting Files and Folders Permissions

When Event Manager scans a document, it must write the output file to your Mac disk. Ensure disk write access is permitted:

1. In System Settings > Privacy & Security, click Files and Folders.
2. Find Epson Event Manager in the list.
3. Confirm that Documents Folder and Downloads Folder are toggled ON.