Panasonic KX-W1500

4.2 Mechanical Function and Adjustment
Paper Pan
Rear Feed Roller
Paper Release Plate
Front Feed
Roller
(Right Side View)
Reed Switch
Sector Gear , Gear
Intermediate
Gear
Magnet Shutter e T
B j
pal Pee,
Paper Feed Motor
49-55
4.2.1 Paper Feed Mechanism .
The paper feed mechanism, mounted on the Chassis,
consists of the Platen, a spring-loaded Paper Release
Plate and a floating Paper Pan which has 3 front and
3 rear Feed Rollers. As paper is inserted, it is guided
between the rear Feed Rollers and the Platen, where
it is gripped and fed as the Platen rotates. The paper
can be advanced manually mreugn use of either
Platen Knob.
4.2.2 Paper Feed Motor
Drive for the Platen is provided by a DC motor, which
rotates the Platen through a Sector Gear engaged
with the Plated Gear. One complete revolution of the
Intermediate Gear and Sector Gear provides 1/2 line
space movement to the Platen. As the Motor is ener-
gized, it begins to rotate counterclockwise (viewed
from the top) and its Gear causes the Intermediate
Gear to rotate clockwise, bringing the Sector Gear into
engagement with the Platen Gear and advancing the
Platen. The Home Detecting Lever is activated by
Cam rotation and the Magnet Shutter mounted on the
top of the Home Detecting Lever turns the Reed
Switch off. The Motor and Gear continue to turn
through momentum until a full revolution has been
completed. After rotation is completed, Platen position
is maintained by a spring-loaded Detent which is en-
gaged with the Platen Ratchet. The Paper Feed Motor
is actuated whenever the Carrier return key is de-
pressed.
4.2.3 Line Space Detent
After each line space operation, the Detent is fully
seated between 2 platen gear teeth by the tension of
the spring attached to the Detent shaft to obtain prop-
er line space operation.