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Chapter
2
Command Codes
-
Odd Dot Columns:
Bit #:
8
Decimal Value:
128
1
2
3
Dot Row
4
5
6
Bit 7 and 8 may be "0" or "1" in Plot Mode.
Plot Data Line Format
Each plotted line of data may include up to 132 data bytes. The first data byte
in the line addresses the dot positions to print in the first character column; the
second data byte addresses the dot positions to print in the second character
column, etc. After the last byte of data, enter the terminator command (cc)G,
and repeat this sequence for the number of plot lines involved.
In odd dot plot, the (cc)G terminator causes the contents of the buffer to plot
and advances the paper (or moves the logical print position in thermal
printers) a single dot row based on the vertical density of the current print
mode. In even dot plot, the paper/logical print position is not advanced.
For high density plot, the Even Dot Plot and Odd Dot Plot commands are
used in conjunction with two data lines. The Even Dot command is sent with
the first data line along with the (cc)G terminator. The terminator causes the
contents of the buffer to plot in the even dot columns but does not advance
the paper/logical print position. The printer waits for the second line of data
using the Odd Dot Plot command and a terminator. Data in the buffer is
plotted in odd dot columns of the same row where even dot column data was
just plotted and the paper/logical print position is advanced one dot row at the
vertical density of the current print mode.
134
Table 17. Odd Dot Plot Data Example
Byte/Character Column #1
-
1
3
5
7
9
11
7
6
5
4
3
2
1
64
32
16 08 04 02
01
Decimal
Hex Data
Binary
Value for
Byte for
Pattern
the Row
the Row
11000100
196
C4
11000010
194
C2
11111111
255
FF
255
FF
11111111
11000010
194
C2
11000100
196
C4
LSB
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