Epson WorkForce Pro WF-M5799 Workgroup Monochrome Multifunction Printer with Replaceable Ink Pack System - Manual (Page 157)

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You see this window:
4. Select the checkbox for the settings you want to lock. To lock all print settings, select All Document
Settings .
5. Under Advanced Settings , select the setting option you want to use for each locked setting.
6. Click OK .
Epson Universal Print Driver Locked Setting Options
Parent topic: Printing with the Epson Universal Print Driver - Windows
Epson Universal Print Driver Locked Setting Options
Select the options you want to use for any locked print settings.