Page "Daisy wheel printing" Paragraph 14

Consideration was also given to optimising graphic printing by changing the glyphs on the daisy wheel to a set that would be able to print all the required bitmap combinations more quickly, without requiring an impact for every single dot.

This would have the advantage that vertical dot combinations could be printed in a single impact, without requiring fine rotation control of the platen roller.

However it would require a specialised daisy wheel so printing of a letter and letterhead would require a two-step process with a manual wheel change in-between.

As the development of this technique post-dated the widespread availability of 24-pin dot matrix printers and coincided with the arrival of affordable laser printers in offices, it was never a popular approach.