%2.2.06 Paper Detection Mechanism2.2.06 Paper Detection MechanismTop Feed Paper DetectionWhen cut sheet paper is inserted into the printer, Point A of the Rear/Top Paper Feed Lever is pushedbackward, causing the Sensor Lever to rotate.As the Sensor Lever rotates, it contacts the Rear Sensor Lever. This makes the Rear Sensor Leverrotate.The Rear Sensor Lever rotates, unblocking the Rear / Top Paper End Sensor (SNS1).Rear Feed DetectionWhen paper is fed from the Rear Push Tractor, Point B is pushed backward. This makes the SensorLever rotate.As the Sensor Lever rotates, it contacts the Rear Sensor Lever. This makes the Rear Sensor Leverrotate.The Rear Sensor Lever rotates, unblocking the Rear / Top Paper End Sensor (SNS1).Bottom Feed DetectionWhen the paper is fed from the bottom of the printer, Point C is pushed, rotating the Bottom Paper EndLever.As the Bottom Paper End Lever rotates, it contacts the Bottom Sensor Lever. This makes the BottomSensor Lever rotate.The Bottom Sensor Lever rotates, unblocking the Bottom Paper End Sensor (SNS2).NOTE:The method for detecting a paper-end condition is the reverse of the above.PAPER-END is detected when the Bottom Paper End Sensor (SNS2) is blocked.ML520/521 ( 96-02-04 )
