From epson The error message "Service Req E511" means that part of the photoconductor unit (PCU) called the transfer belt is not being detected.
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- Power the printer off, wait 30 seconds, and then power it on again.
If the error has cleared, print a document. If the error has not
cleared, repeat this process and check if the error clears when you
power on the printer again. Repeat this a maximum of three times if
necessary. If the error returns after repeating this process three
times, follow the steps below. - Remove the photoconductor unit (PCU).
For help with this step see "How to remove and reinstall the photoconductor unit" in the Related Articles section, or refer to your user guide.
- Ensure that the printer is powered on, and then open Cover B.
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- Ensure that the printer is powered on, and then open Cover B.




