To grant your Linux system permissions to use an Epson scanner without root access, you must create a custom udev rule. This assigns the device to the scanner group and sets appropriate read/write permissions.Step 1: Find your Vendor and Product IDOpen a terminal and type lsusb. Look for your Epson device in the list and note down its IDs, which look similar to 04b8:012f (where 04b8 is the Vendor ID and 012f is the Product ID).Step 2: Create the udev RuleOpen a new rule file in your preferred text editor (e.g., Nano) with superuser privileges:sudo nano /etc/udev/rules.d/99-epson-scanner.rulesAdd the following line (replace YOUR_VENDOR_ID and YOUR_PRODUCT_ID with the numbers from Step 1):SUBSYSTEM=="usb", ATTRS{idVendor}=="YOUR_VENDOR_ID", ATTRS{idProduct}=="YOUR_PRODUCT_ID", MODE="0666", GROUP="scanner", ENV{libsane_matched}="yes"
Save the file and exit the text editor.Step 3: Apply and VerifyReload the udev rules for the changes to take effect:sudo udevadm control --reload-rulesUnplug your scanner's USB cable and plug it back in.Check if your user account is in the scanner group (if not, add it using sudo usermod -a -G scanner $USER).Run scanimage -L in your terminal to verify that your Epson scanner is detected.For more technical background on writing hardware rules, you can refer to general guides on Writing udev rules.Could you tell me the exact model of your Epson scanner and which Linux distribution you are using? This will allow me to provide the exact idVendor and idProduct numbers for your device, or help you troubleshoot specific SANE driver issues if they arise.

sudo apt-get remove ipp-usb