Star Micronics LC24-20 Assigning the character dot pattern

Assigning the character dot pattern
We will use atiny representation of atelephone symbol for ourexample.
1 2 3 4 5 6 7 6 91011 1213141516171619202122232425262726293031 32333435
128 ~II~~ ~ ~ II I I I I I I I I I iIIIIIIII~I
64—— — a, I- II-I I- Il-r l-r I- I- I- 1 1 I
32—— — ~!
16—— —
8———
4
2———
1
128
.. 1-
04
32
16
6
4
2
1
128
64
32
16
8
4
2
1
ii
●
●
●
●

figure 9-3.Telephone symbol with LQ pica
Afteryou have designed the character pattern, you will need to compress the
DotPattern. Datacompression allows youto storemore downloadcharacters
than withoutcompression. It is amore efficient use of memory. The printer
will repeat the previous dot column when the current column compression
mask bit is set to “l”.
Fillup the adjacent doteven they do not print,then compare the each veritcal
line to the left line. If the line is the same as the left one, write “l” in the
column of the “compression mask bit”. If it isdifferent, write “O”.
127