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Service Guide ML520/521
Chapter 2 Principles of Operation
Ribbon Drive Operation
The ribbon drive mechanism feeds the ribbon in synchronization with the spacing operation. The force required to drive the ribbon is obtained from the space motor.
The ribbon drive mechanism is composed of the items listed below. |
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Ribbon Drive Gear Assembly |
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Ribbon Gear |
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This gear is located on the space motor assembly |
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Ribbon Cartridge |
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A continuous loop ribbon with | tank, |
which is built into the ribbon cartridge. |
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When the space motor turns, the ribbon gear on the spacing motor shaft rotates. The rotation is transmitted via a combination of gears, from the ribbon drive gear assembly to the drive gear in the ribbon cartridge.
Although the space motor moves in both the forward and reverse directions during