Auto Sheet Feeder Mechanism
The PF motor torque is transmitted to the ASF pickup rollers via a planetary gear in the disengage
mechanism. The pickup roller shaft has two arms on each side. The arms engage the paper
support to cause the paper surface to contact the pickup rollers. The one-way clutch makes the
rollers rotate in one direction for paper pickup. When not in paper pickup motion, the planetary
gear does not transmit torque to the pickup roller shaft.
After picking up paper, the planetary gear is released from the ASF mechanism. The torque of the
PF motor is then transmitted to the paper feed mechanism.
To Tractor
To ASF
ASF Transmission Gear
PF Roller
Paper Eject Roller
Eject Roller Unit
Pump Unit
Release Gear
Disengage Gear
PF Motor
PF Motor Pinion Gear
Eject Paper Shaft
Figure 2-6. Paper Feed Mechanism
Pickup Roller
Paper Support
PE Sensor
PF Roller
ASF Transmission Gear
Disengage Gear
Pinion Gear
PF Motor
Paper
One Way Clutch
ASF Mechanism
Figure 2-7. ASF Mechanism
Operating Principles
2-8 Rev. A
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