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Message: <blockquote data-quote="Ngô Thu Hậu" data-source="post: 28576" data-attributes="member: 731">Hello everyone,I recently encountered an issue with my Epson EP 804 printer, where it is displaying a Service Required message. After doing some research, I found out that I may need to use the Epson EP 804 Adjustment Program to fix this problem. However, I am unsure of how to use this program and if it is safe to do so. Has anyone else experienced this issue with their Epson printer? Can anyone provide guidance on how to use the Adjustment Program or share their experience in resolving this issue? Any help or advice would be greatly appreciated. Thank you.</blockquote>