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Operation of Each Mechanism
2-11 CL-S6621
Taking up Ribbon:
Ribbon will be taken up on the front side as follows:
(1) As media is fed, ribbon is also fed by the friction force produced between media and the “SA,
Head”.
(2) Ribbon slacks and the ribbon sensor on the front side turns OFF as the “SA, Ribbon Tension
Shaft F” is pushed outward.
(3) The “SA Ribbon Motor F” starts to turn and ribbon is taken up.
(4) Ribbon tightens and the ribbon sensor on the front side turns ON. Then, the “SA Ribbon Motor
F” stops.
Supplying Ribbon:
On the rear side, the “SA Ribbon Motor R” turns to supply ribbon, while applying adequate back
tension. In the same way as on the front side, the ribbon sensor on the rear side detects the ribbon
tension to keep the ribbon tension constant. However, when printing is made and ribbon is fed, the
ribbon sensor on the rear side turns ON since ribbon is tightened at this time.
Reel Drive Mechanism:
Though the ribbon holders are directly installed in the reels, ribbon is connected to the reels via the
spring mechanism of the ribbon holders. This means that ribbon is taken up via the spring
mechanism when the “SA Ribbon Motor F”/”SA Ribbon Motor R” turns.
On the front side, the “SA Ribbon Motor F” turns in the clockwise direction viewing from the right
side of the printer, and the “Gear Ribbon Shaft F” (take-up reel) turns in the counterclockwise
direction via the “Gear Reduction Ribbon 1”, “Gear Reduction Ribbon 2”, “Gear Reduction Ribbon
3” and “Gear Idle Ribbon”. Thus, ribbon is taken up.
On the rear side, the “SA Ribbon Motor R” turns in the counterclockwise direction, and the “Gear
Ribbon Shaft R” (supply reel) turns in the clockwise direction via the “Gear Reduction Ribbon 1”,
“Gear Reduction Ribbon 2”, “Gear Reduction Ribbon 3” and “Gear Idle Ribbon”, Ribbon”. Thus,
ribbon is supplied.