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For a complete listing of all the standard MX-70 characters, look at the self-test
printout from Chapter 1. It's right there, hanging on your wall, isn't it?
How it all Lays out on Paper
We have seen that all the characters are a uniform 7 dots high. What Appendix
C doesn't show is that the spacing
each text line a total of 12 dots high.
'Blank Lines
Blank Lines
Here's another way of looking at it. There are 12 dots from the top of one row of
text to the top of the next row. Since the spacing between each pin on the print
head is l/72", each line requires 7/72 + 5/72 = 12/72, or l/6 of an inch. 6 lines per
inch. No - it isn't just a coincidence.
Figure 4-3
the lines is a fixed 5 dots. This makes
between
Blank Space
Top of Line
Top of Line
Figure 4-4
An Introduction to Dot Matrix Printing
33
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