OKIDATA OKIPAGE 20, Service Manual

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(b) Hopping from the Front Feeder
(1) Hopping
The Front Feeder Plate is normally locked at the lower position by the Release Lever and turn the Micro
SW on. Top of the FF Cam which attached on end of the Front Hopping Shaft is normally located Upper
position (0 to 30 degree : home position). Rotating the Hopping Motor in direction b (CCW) drives the
Front Hopping Shaft and then attached the FF Cam and the Front Hopping Roller are driven. During the
FF Cam rotated approx. 60 degree, the Release Lever was pushed and
the Front Feeder Plate lifts up, then the Front Hopping Roller picks up a sheet of paper. At the FF Cam
rotated approx. 180 degree, the Front Feeder Plate is pushed down and locked by the Release Lever
again. At the FF Cam rotated approx. 275
degree the paper fed until the Inlet Sensor turns off.
(2) Aligning
After turning on the Inlet Sensor, the paper fed by a predetermined length and choked up to the wedge
space formed by the Regist Roller and the Pressure Roller so that to align the skew of paper.
(3) During the paper fed from the Front Feeder Plate, the one way clutch of 1st Hopping Roller is idled and
not to drive the 1st Hopping Roller and the Sub Roller.
(4) Feeding
After aligned the paper, the Hopping Motor turned off and stop hopping. Then Clutch (Regist) turned on
and the Regist Roller start to feed the paper. After the paper fed, the Front Hopping Roller drives the Front
Hopping Shaft and attached the FF Cam with small idle torque of build in one way clutch and when comes
into the Release Lever, the one way clutch is slipped and the FF Cam is stopped at the upper position
(home position). The Front Hopping Roller continuously idled up to the paper away.
(5) Start printing. after the paper turns off the Write Sensor.