MX-4140N, MX-4141N, MX-5140N, MX-5141N (serv.man9). Circuit Diagram. - Sharp Copying Equipment Service Manual (repair manual). Page 11

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MX-5141  BLOCK DIAGRAM / ブ ロ ッ ク図  1 –  9
7. SERIAL COMMUNICATION / シ リ アル通信
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