1-6
Overview and Operating Principle
feeding drive meshes with the Gear,paper feeding drive only when the Gear,paper feeding drive
rotates in the direction of arrow (c). It rotates intermittently 1 or 2 teeth in the direction of arrow
(e) depending on the amount of the stroke of the paper feeding lever.
Figure 1-3 Paper Feeding Gear Assembly
Ribbon feeding gear assembly
The ribbon feeding gear assembly consists of the Ribbon drive gear, the Ribbon feeding gear
which combines a bevel gear and a smaller gear, and the spool gear assembly. When the Ribbon
driving gear rotates in the direction of arrow (a), the bevel gear of the Ribbon feeding gear which
engages with the ribbon driving gear rotates in the direction of arrow (b). As the small gear
mounted on the Ribbon feeding gear engages with the spool gear assembly, the ribbon feeding
gear rotates, causing the spool gear assembly to rotate in the direction of arrow (c).
Figure 1-4 Ribbon Feeding Reduction Gear Assembly
1.2.2 Detector Mechanism
The detector mechanism consists of a T-detector mechanism and R detector mechanism and
these play an important role in the operation of each section of the printer mechanism. The
respective detector mechanisms are shown in Figs. 1.5 and 1.6.
a
b
c
d
e
Roller, paper feeding
Paper feeding lever
Gear, paper feeding
Gear, paper feeding driive
a
b
c
Ribbon feeding gear
Spool gear assembly
Ribbon drive gear
Содержание M190G
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