Paper-End Detection Mechanism - OKIDATA Pacemark 3410 Service Manual

Page: 28
Service Guide PM3410
Chapter 2 Principles of Operation

2.2.05 Paper-End Detection Mechanism

Friction Feed (Cut-Sheet) Paper-End
When the Release Lever is in the SHEET FEED Position, the photosensor located in the Paper Pressure
Guide is active. If sheet paper is installed, the paper is detected by the sensor and the sensor is turned
ON. When the printer is out of sheet paper, the sensor is turned OFF indicating a paper-end condition.
Continuous (Bottom) Feed Paper-End
(Also used with Bottom Tractor Feed Unit)
When the Release Lever is in the TRACTOR FEED Position, the switch on the left Push Tractor and the
Paper-End sensor on the sensor board are active. If paper is detected by either of these sensors,
paper-end is inhibited.
When bottom feed paper is installed, it moves the bottom paper-end lever to turn the sensor ON. When a
paper out condition exists, the lever blocks the sensor, indicating a paper-end condition.