D. Detecting the Waste Toner Feeding Screw (locking)If the waste toner pipe becomes stopped up by waste toner inside it and, as a result,the rotation of the feeding screw is hindered, waste toner can start to pour out becauseof feeding faults.To prevent such a problem, the machine is equipped with a feeding screw detectionmechanism.The gear A (Figure 4-210) used to drive the waste toner feeding screw becomessubject to force in the axial direction, and slides along the shaft.The movement of the gear A is monitored by the waste toner feeding screw detect-ing switch (MSW4). When MSW4 is pushed by the gear A, the main motor (M1) will stop,and the DC controller will indicate ‘E013’ on the control panel.Figure 4-210 (rear view)Waste tonerWaste toner pipeWaste toner feeding screwCleaning assemblywaste toner feedingscrewCleaning assemblyDC controller PCBM1Gear AWaste toner feeding screw detecting(WTFL) J114-B1,B2Main motorWaste toner feedingscrew detection (MSW4)When the waste tonerfeeding screw becomeslocked, the gear A willslide in the direction ofthe arrow.CHAPTER 4 IMAGE FORMATION SYSTEM4-38 COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
