5525B/31/32 Line Matrix Printer LinePrinter Plus Programmer's Reference

150
Chapter 5 Plot Mode
Figure 9. P-Series Plot Data Byte Format
Plot Data Line Format
A plot data line may contain the following plot data bytes: When using 132
column paper, the maximum bytes are 132 for a horizontal dot density of 60
dpi or 198 bytes for a horizontal dot density of 90 dpi. If Auto Line Feed is
disabled, any bytes over the maximum are lost. If the maximum is exceeded
and Auto Line Feed is enabled, a Line Feed (LF) is forced and the remaining
plot data is printed as text on the next line.
The plot mode control code may occur anywhere in the line prior to the line
terminator, but plot speed may decrease if it is not at the beginning of the line.
111 1110
BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7 BIT 8
ODD DOT PLOT DATA BYTE
LSB MSB
1357911
NOT
USED
NOT
USED
00 01111
2 4 6 8 10 12
EVEN DOT PLOT DATA BYTE
BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7 BIT 8
LSB MSB
DOT COLUMN #1 OF
NEXT CHARACTER
COLUMN
~~~~~~~~~~~~~~
DOT COLUMN
#12 OF PREVIOUS
CHARACTER
COLUMN
NOTE: IN ACTUAL
PRINTING, THESE
TWO ROWS MERGE
TO PRINT ON THE
SAME ROW.
NOTE: BIT 6
AND/OR BIT 7
MUST BE 1"
FOR PLOT MODE
~~~~~~~~~~~~~~