Hello and thanks for your question. I look forward to assisting you today with the best answer possible.
Does the first letter of the file prints on the middle of the paper or the middle portion of the file gets printed on the paper?
I'm sorry to say it's a problem with the printhead.
What is the age of your printer?
As of first step we will try cleaning the printhead. If it doesn't works we've to replace the printhead to get everything back to alright.
Did you try cleaning it manually?
When you turn the printer ON -- do you hear the printhead move?
It's not an alignment problem because it skips the initial file and starts printing from the middle.
I'll give you a video which will help you to clean your printer.
Please click this link to see the video: https://www.youtube.com/watch?v=m8NkgKw7mDw
Tell me how it goes.
No problem, take your time.
Yes, no problem.
I'll be waiting for your reply.
In that case I am sorry to say you will have to replace the printhead.
A new printhead will cost you around 1800$.
Is there anything else I can help you with?
I am sorry for giving you a bad news.
Is it happening only with roll paper?
I will give you a video manual on how to load a rolling paper and print using the rolling paper.
I know you have been printing on a roll paper since two years but I just want to make sure you're doing it correctly or not.
Please follow this link to access the video manual: https://www.youtube.com/watch?v=u64cn07PCOk
Please follow the instructions carefully.
Did you turn off high speed from advanced setting menu?
Please follow this link to see:https://files.support.epson.com/htmldocs/pro78_/pro78_rf/softw_4.htm#making advanced setting b
Its from windows.
Please follow this link for mac: https://files.support.epson.com/htmldocs/pro78_/pro78_rf/softx_4.htm#advanced settings d
Okay, no problem. I will do some research on this and get back to you.
Thanks for your patience!
Would you like me to remote in your computer and work on the issue directly?
I tried a lot but unable to find a solution. I will opt-out and open this question to other experts.
No need to rate my answer.