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I have a D880 copier printer.  It had a paper jam [duplex copying].  I have replaced the power boards, main boards, the fuser roller and two other boards.  I do not have a repair manual.  One of the diodes is blinking and the reset green button goes ...
I have a D880 canon copier.  After numerous paper jams when I tried to double side copies, now all I get is blank white copies.  Anyone have a solution? Thank you in advance.