Ricoh 1502... just enter to sp mode (yellow, 1,0,7, push 'c' button 5sec.).... after entering sp mode, switch off & on the machine; if not cleard sc541,,, check thermistors for open/short circuited before going to changing powr supply board 7 finelly BICU (mothr board)
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Ricoh 1502... just enter to sp mode (yellow, 1,0,7, push 'c' button 5sec.).... after entering sp mode, switch off & on the machine; if not cleard sc541,,, check thermistors for open/short circuited before going to changing powr supply board 7 finelly BICU (mothr board)