Oki OL1200, Service Manual, Page: 31 / 272

Page: 14
Service Guide OL1200
Chapter 2 Operation Description
2.4.3 Process operation descriptions
(1) Hopping
Hopping from the first tray and the front feeder are effected by a single hopping motor in the mechanism
shown below.
Turning the Hopping motor in the a direction drives the hopping roller of the first tray. Turning the Hopping
motor in the b direction drives the Hopping roller of the front feeder. The both and hopping gears contain
one-way bearing, so that turning each of these gears in reverse direction will not be transmitted to the
corresponding roller.
(a) Hopping (1st tray)
1 Rotating the pulse motor in the direction a (Clock-wise direction) drives the hopping roller of the first tray
to advance the paper until the inlet sensor turns on. At the same time, the one-way clutch gear B also
rotates. However, the hopping roller of the front feeder will not rotate due to the one-way bearing.
2 After turning on the inlet sensor, the paper advances further by a predetermined length until it hits the