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er420m sequence error clearance caused all information to be cleared how do?

after clearing all information on er420m because of a sequence error
how do i reset the information
LYDIA ESTRAYS, May 2016
RTFM

http://www.rekavo.nl/handleidingen/sam4s/er420.pdf

Anon, May 2016
link Click here to see other fixes for Epson ER-420M.