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Defining the Print Control Packet
Use the print control packet (C) to set the contrast, print, and
margin adjustment, print speed, and printhead width.
Syntax
{
I
,C,contrast,print_adj,margin_adjust,
speed_adj,ph_width
p
}
C1. C Print Control Packet
C2. contrast -28 - 40. 0 is the default. You may need to adjust this value
depending on the type of supplies you are using. For
example, linerless supplies require a higher print contrast, but
receipt paper requires less contrast.
C3. print_adj -99 - 99 in 1/203 inch. 0 is the default. Adjusts where data
prints vertically on the supply. Increase the print position to
move print up, decrease to move print down.
C4. margin_adj -99 - 99 in 1/203 inch. 0 is the default. Adjusts where data
prints horizontally on the supply. Increase the margin position
to move print to the right, decrease to move print to the left.
Margin and print position are format adjustments. They will
not affect the supply position, dispense position, or backfeed
distance.
C5. speed_adj Print Speed. Options:
0 The printer determines the print speed automatically.
This is the default.
15 Uses a print speed of 1.5 ips. This is the only valid speed
for serial bar codes. If the speed is set
differently and then the printer tries to print serial bar code,
the printer changes to this speed. You can also use it for
parallel bar codes.
20 Uses a print speed of 2.0 ips.
30 Uses a print speed of 3.0 ips.
C6. ph_width Width of the printhead in dots. Use 0.
Example
{
I
,C,0,-20,-10,0,0
p
}
Uses the default contrast, moves print 0.1 inch closer to the
bottom of the supply (20/203 inches) and .05 inch to the left on
the supply (10/203 inches), the printer determines the print
speed, and uses the default printhead width.
2-12
Configuring the Printer