DP120F/DP125F Troubleshooting 11-70 March 2000 © TOSHIBA TEC(2) Paper jam at the paper feed section(3) Paper jam at the paper exit sectionCheck pointsIs the actuator of the Paper exit sensordamaged?Select the SENSOR TEST in the testmode. (Refer to page 11-20.)When the paper exit sensor is turned ON,is the Bit 6 (Upper data) changes.Is the cable firmly connected between thePaper exit sensor and the Mother PBA(CN4), between the Mother PBA (CN25)and the Main PBA (CN13)?When no problem is found in the stepsabove, the Paper exit sensor or the PBA'smay be defective.SolutionsReplace the Paper exit sensor.When the data changes, go to step 4.Insert the cable firmly to the connector.Replace in the order of: Paper exit sensor,Main PBA, Mother PBA.Step1234Check pointsIs the actuator of the Paper feed sensordamaged?Select SENSOR TEST in the test mode.(Refer to page 11-20.)When the paper feed sensor is turned ON,is the Bit 7 (Upper data) changes.Is the cable firmly connected between thepaper feed sensor and the HVPS (CN2),between the HVPS (CN1) and the MotherPBA (CN2), between the Mother PBA(CN24) and the Main PBA (CN12) ?Are any gears in the Feed gear assemblydamaged?Is the Paper feed roller dirty, damaged orworn?When no problem is found in the stepsabove, the Drum unit, the Developer as-sembly, or the PBA's may be defective.SolutionsReplace the Paper feed sensor.When the data changes, go to step 4.Insert the cable firmly to the connector.If any is damaged, replace it.Clean or replace the Paper feed roller asneeded.Replace in the order of: Drum unit, Devel-oper assembly, Main PBA, Mother PBA,HVPS.Step123456
