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Graphics4–8
Plot Data Line Format
A
plot data line may contain any number of plot data bytes
up to the maximum of 132 for horizontal dot
density
of 60 dpi (Data Processing mode) or
198 bytes for a horizontal dot density of 90 dpi (Corre
-
spondence
mode). 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.
NORMAL DENSITY PLOT
For
normal density plot, the plot
line contains: Control Code 05 hex, plot data bytes, and a Line T
ermi-
nator
(0A hex or 0C hex). The control sequence for sending the P–Series
Normal Density
Plot
is as
follows:
1. Send the plot command code ENQ (05 hex).
2. Send the plot data bytes. (Refer to T
able 4–1 on page 4–1
1.)
3. Send
a line terminator
, either a Line Feed (LF
, 0A hex) or a Form Feed (FF
, 0C hex). A Carriage
Return (CR) may also be used instead of the LF code, provided the Carriage Return has been
configured for Carriage Return = Carriage Return + Line Feed (CR = CR + LF).
a. A
line feed (0A hex) used as the line terminator plots the contents of the buf
fer and advances
the paper a
single dot r
ow, based on the vertical density of the current mode.
b. A form feed (0C hex) used as the line terminator plots the contents of the buffer and ad-
vances the paper to the
top of the next form.
4. Regardless
of which line
terminator code is sent, the printer defaults to the previously selected
print mode unless further plot control codes are provided with the data.
NOTE: Failur
e to adher
e to this format may cause unexpected r
esults.