Oki MICROLINE 80 Maintenance Manual page 38

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Guide shaft (upper)

Synchro belt

Home sensor

Guide shaft (lower)

Fig. 4-2

Spacing Mechanism

4.2.3

Ribbon Feed Mechanism and Operation

The pulse motor for driving the carriage provides the power to

feed the ribbon.

The ribbon feed mechanism consists of the following:

(a) Ribbon drive gear

(b) Ribbon gear

(d) Ribbon change lever

(e) Eyelet detector lever

(f) Ribbon bracket

(1)

Ribbon feed operation

(See Fig. 4-3-(1), -(2).)

Ii the pulse motor runs clockwise (carriage moves from left

to right) when the ribbon change lever is at the left, the

ribbon drive gear runs clockwise via the drive belt.

The

ribbon g. ar rotates freely about the ribbon drive gear

until it engages the left ribbon spool gear to turn the

left ribbon spool clockwise, and feed the ribbon to the

left.

When the pulse motor turns counterclockwise (carriage moves

from right to left) as the CR signal is received, the ribbon

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