Lexmark C720 Service Manual - Page 90

5024-001 Message Description Action Close Front Door The front door is open. Close front door. Check switch (DSW1), cable and connector DCN5 on the IDO1 P.W.B. board. Replace if necessary. Replace the IDO1 P.W.B. board if necessary. Close Rear Door The rear door is open. Replace printer main engine (MCTL P.W.B.) board, if necessary. Close rear door. Check switch (DSW3), cable and connector DCN5 on the IDO1 P.W.B. board. Replace if necessary. Replace the IDO1 P.W.B. board if necessary. Replace printer main engine (MCTL P.W.B.) board, if necessary. Did you replace the Fuser? The fuser page counter has exceeded the fuser page limit. Replace fuser kit. Note: This is a customer orderable part. This message will only be cleared when the fuser page count has been reset to zero. Note: Replace the fuser to prevent this message from recurring. To continue printing: • Press Go if you replaced the fuser. • Press Stop if you have not replaced the fuser. 2-10 Service Manual