HP 2566C User Manual
Page 101
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Dot-Matrix vs. Full-Font
Printers
A major difference between dot-matrix printers and full-font printers is
the print gap, or the distance between the print hammer in its retracted
position and the platen. While the hammers of full-font printers fire
only once to form an entire character, the hammer of a dot-matrix
printer fires an average of 13 times and as many as 26 times to form a
standard-density character. The high-repetition rates that dot-matrix
hammers operate at in order to print at speeds comparable to full-font
printers requires operation at a significantly smaller print gap. Figure
A-1 gives a comparison of typical dot-matrix and full-font print gaps.
DOT MATRIX
FULL-FONT
. lUio A 1. Dot-M;!irix ynri Full-Font Print Gap C' riipan::
A-2 PRINTER SPECIFICATIONS