Epson WorkForce Pro WF-7820 All-in-One Inkjet Printer - Manual (Page 30)

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You see a screen like this:
3. Select On .
4. Enable Accept Unknown User Jobs to allow users to print from generic drivers or use the WSD
scanning function.
Parent topic: Using the Control Panel
Related tasks
Setting a Password and Locking the Control Panel
Preventing PC Connection via USB
You can disable access from a USB-connected computer. This restricts non-network access to the
product and protects the security of confidential scanned documents.
1. Press the home button, if necessary.
2. Select Settings > General Settings > Printer Settings .
3. Scroll down and select PC Connection via USB .
4. Select Disable .
Note: Select Yes to restart the product. Changes are not enabled until the product is restarted.
Parent topic: Using the Control Panel