Lexmark 43J2600 Service Manual - Page 132
Transfer Roll Service Check, they have replaced the transfer roll recently.
UPC - 734646161008
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4059-XXX FRU 3 Toner Sensor Action The toner sensor cable is part of the front harness and part of connector J10 on the engine board. Check the voltage at J1-011. It reads approximately +5 V dc. If incorrect, replace the engine board. If correct, check the voltage at J10-12. It reads approximately +5 V dc with the controller board removed from the printer. If incorrect, replace the engine board. If correct, replace the toner sensor assembly. A bad ground connection between J10-13 on the engine board and pin 3 on the toner sensor results in a 929 service error. Transfer Roll Service Check Service Tip: The transfer roll is 17.0 mm (.669 inch) diameter. Any print quality problems such as lines that are spaced 17 mm apart indicate you should check the transfer roll for damage, toner or foreign material buildup. Service Tip: The transfer roll assembly is part of the Maintenance Kit for models 2450, 2455 and 3455 printers and is replaced when a '80 Scheduled Maintenance" message displays. Ask the customer if they have replaced the transfer roll recently. CAUTION: Make sure the printer is powered Off before making any checks on the transfer roll or associated parts for personal safety and to prevent damage to the printer. FRU 1 Transfer Roll Assembly Action Check the transfer roll for any signs of toner buildup, surface damage to the roll, oil or other contaminants on the surface of the roll. Replace the transfer roll as necessary. 2-105 4059 Service Manual