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100-88002 Rev B Page 121
Simple Raster Graphics
Simple Raster Graphics prints a horizontal raster of graphics data one or multiple
times. Horizontal offset and number of data bytes are variable and specified by
parameters. This is a legacy support command and intended to be replaced by
horizontal graphics commands. This command does not support compression or
color graphics.
[ESC] . Simple raster graphic mode
ASCII [ESC] .
m n rL rH d1...dn
* <m> <0> <0>
Hexadecimal 1BH 2EH
m n rL rH d1…dn
Decimal <27> <46>
m n rL rH d1…dn
IPCL none
Description The [ESC]. command is a simple method of printing raster graphics,
however the format does not support compression or color.
Where:
m: horizontal offset from left margin = 8 x m dots
n: number of data bytes that compose the raster
r : number of times the raster is to be printed = 256x rH + rL
d1…d
n: data bytes
Range: 0<= m <= 80
0 <=n<=80
0<= r <= 65535
0 <= d1..dn <= 255
Note: This command can produce graphics that are difficult to print and hard on the
power supply. Avoid multi-line repeats of very dark lines. In normal graphics, the
printer does a look ahead at impending print and tries to adjust it’s speed to limit
power consumption. This command can easily produce graphics that make that very
difficult. For example a completely white space followed by a black group of lines that
are less than 20 lines long will provide a transient load on the power supply that may
overload it. The printer does not recognize the black data until it is too late to slow
down. Normal graphics generally does not contain that kind of data.