Lexmark C912 Service Manual - Page 136

5055-xxx 210 Staple jam service check FRU 1 Stapler Staple cartridge holder 2 Stapler Finisher control board Stapler cable Action Check for jammed staples in the stapler. Clear the staple jam, go into diagnostic mode, and run a staple test. If the problem reoccurs, replace the staple cartridge holder. If this does not resolve the problem, replace the stapler. If the error occurs and there is no staple jam, check to ensure that connectors CN5 on the stapler and PJ1 on the finisher control board are properly connected. Make sure that the finisher set switch is activated. Measure for +5 V dc between pins 11 and 12 on stapler connector CN5. If +5 V dc is not present, check for continuity on the stapler to finisher control board cable. If there is no continuity on any pin position, replace the cable. If there is continuity, replace the finisher control board. If +5 V dc is present, replace the stapler. 2-86 Service Manual