SOURCE: the printing press Ryobi 3302M indicate E1;what
E-1 is a safety circiut error. The ryobi safety has 2 contacts in it. 1 side inputs the safety device signal to the CPU and the other trips the R-100 relay which causes your press not to run. From: http://www.topix.com/forum/business/commercial-printing/TFNDLS9AJCSHKQP7L
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