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Chapter 2 Operating Principles
2-1. Operation of Each Mechanism
2-7 CL-S700/CL-S703/CL-S700R
2-1-2. Media Feed Mechanism
The major components of the media feed mechanism are:
(a) Unit, Motor (d) Motor Drive Belt
(b) SA1, Drive Shaft (e) Platen Drive Belt
(c) Unit, Roller Platen (f) Tension Plate block
By setting the head block to the down position, the “Unit, Head” pushes media against the platen.
As the “Unit, Motor” (stepping motor) (located on the left) turns counterclockwise viewing from the
right side of the printer, the platen turns counterclockwise via the “Belt, Motor Drive” (on the left
side), “SA 1, Drive Shaft” (that links left and right side) and “Belt, Platen Drive” (on the right side).
Then, media is fed forward by the friction force produced between the platen and the “Unit, Head”.
Since the spring pulls the bottom of the Tension Plate block as shown in the figure, the Tension
Plate block gives an adequate tension to the “Belt, Platen Drive”.
When the “Unit, Motor” turns clockwise viewing from the right side of the printer, media is fed
reversely.
One step of the “Unit, Motor” feeds media by 1/16 mm (0.0025").
(Take-up Reel)
Thermal Element
Platen
(Unit, Roller Platen)
Belt, Platen Drive
(Right side)
Belt, Motor Drive
(Left side)
(Supply Reel)
Ribbon
Tension Plate Block
Unit, Motor (Left side)
SA1, Drive Shaft
Unit, Head
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