Oki OKIPAGE8c Maintenance Manual page 33

(2) Up/down movement of the I/D unit and rotation of the EP drum
The up/down movement of the I/D unit and the rotation of the EP
drum are performed by a mechanism shown below. (See Figure 2.6-a) This mechanism is
driven by a single pulse motor.
When the pulse motor turns left (CCW), the up/down gear turns left (in the direction of "a") and
the up/down lever (see Figure 2.6-b) moves up (in the direction of " "). The up/down lever
pushes up the up/down actuator of the I/O unit. The I/D unit moves up as shown in Figure
2.6-b. The EP drum rotates freely.
Pulse motor
CCW
CW
Z25/75
Z67/43/24
Z53/44
a
EP drum gear
b
Up/down gear
CCW
Figure 2.6-a
When the pulse motor (see Figure 2.6-a) turns right (CW), the EP drum gear turns left (CCW)
and the up/down gear (one-way gear) is released. The weight of the I/D unit is applied to the
up/down lever via the up/down actuator of the I/O unit. The free up/down gear turns right (in
the direction "b" in Figure 2.6-a) and the I/D unit goes down until the up/down actuator of the
I/D unit is stopped by the up/down lever. (See Figure 2.6-c.) During this, the image is
transferred onto the running paper.
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