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Assigning the character dot pattern
We will use a tiny representation of a telephone symbol for our example.
,:
,
s, ,,,
F 9 T s w p
Afteryou have designed the character pattern, you need to compress the Dot
Pattern.
Data compression allows you to store more download characters than
without compression. It is a more efficient use of memory. The printer will
repeat the previous dot column when the current column compression mask
bit is set to” 1“.
Fill up the adjacent dot column even if it does not print, then compare each
vertical line to the line on its left..If the line is the same as the left one, write
“l” in the column for the compression mask bit. If it is not,
!, , J >,4)0),,,
,4. $,6, ,, ”!, ,02, ,,, ,,2?, ,6,, ,,,9, ”.,1 3, ,,3 .,,,
,,
.!
.,.
6
,
,,,
,4
3,
,6
8
,
,,,
64
,,
6
H
“0”.
,,,,,.,,..,.,,,.
,,,,+,,,,,
F 9 Filluptheadjacentdots,thenwritethecompressiondata.