Paper Feed - OKIDATA ML380 Service Manual

Page: 27
Service Guide ML380
Chapter 2 Principles of Operation

2.2.04 Paper Feed

Paper feeding is performed by turning the platen and the pin tractor. The tractor is driven by the line feed
pulse motor.
The paper feed mechanism consists of the following items.
Pulse motor with gears
Idler Gear
Change Spring
Change Gear
Platen
Tractor Feed Unit
Pressure Roller Assembly
Friction Feed
When the release lever is set to the FRICTION FEED position, the change gear is disengaged from the
tractor gear. At the same time, the release lever applies pressure to push the pressure rollers against the
platen, allowing paper to be fed.
Tractor Feed
When the release lever is set to the TRACTOR FEED position, the release lever allows the reset spring to
push the change gear toward the tractor gear. At the same time, the release lever pushes the pressure
rollers away from the platen, allowing paper to be fed by the tractors.
NOTE:
Drive power from the line feed motor is transferred from the platen to the idler gear and then to the change
gear.