Star LC-100+ Colour Guide D'utilisation page 20

Is your monochrome ribbon still in good shape?
If the ribbon material appears to be grey, it means
that the black ink has been used up and it is time
to replace the ribbon.
Are you using a color ribbon to print mainly
black text? Doing so can cause the black part of
the color ribbon to be used up too quickly. Switch
to a monochrome ribbon whenever you plan to
print mainly black text. Remember to make any
necessary EDS changes when you change ribbon
types.
Are you getting muddy-looking colors from a
color ribbon? The more green, orange, and purple
colors you use, the quicker the primary colors
(blue, red, yellow) will become mixed with other
colors. This will cause a drop in performance of
the ribbon.
Remember that changing the ribbon before it
becomes frayed or completely out of ink extends
the life of your print head.
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