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Message: <blockquote data-quote="Phan Ngọc Đại" data-source="post: 28696" data-attributes="member: 947">Hi everyone,I have recently encountered an issue with my Epson XP420 printer. The red light is flashing and I have been unable to print anything. I have heard about the Epson XP420 Adjustment Program that can potentially fix this issue. Can anyone provide some guidance on how to use this program effectively, or any other suggestions on how to resolve the red light flashing problem? Any help would be greatly appreciated. Thank you.</blockquote>