Lexmark C510 Service Manual - Page 112
remove shield. Check cable, shield. See
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5021-0XX Step Questions / actions Yes No 5 If waste toner bottle is Go to step 6. removed, reinsert it. Ensure rear cover assembly cover is shut. Override top and front cover interlock switches. For location, see "Interlock switch locations" on page 5-8. Reconnect operator panel. Turn printer on. Does 903 error reappear? Problem solved. 6 Turn printer off and remove Replace engine Replace cable. engine controller board controller board. shield. See "Engine See "Engine controller board removal" controller on page 4-55 for steps to board removal" remove shield. Check cable on page 4-55. that connects I2CN on engine controller board to DCN3 on I/O board for proper connection, damage, pin shorting and continuity. Is cable okay? 2-34 Service Manual
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