Instruction manual

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,con trast,print_adj,mar gin_ad just,speed_adj,
ph_width p }
C1. C Print Control Packet
C2. contrast Print Contrast. Range: -390 to 156. 0 is the default. You may need to adjust this value depending
on the type of supplies you are using. To make the print darker, use increments of 13 (for example,
0, 13, 26, 39, 52, etc.). To make the print lighter, use increments of -129 (for example, -129, -258,
or -387). You need to use these incremental values to see a difference in the print contrast. For
example, values 1 to 13 produce the same result. This is true for values -1 to -130.
C3. print_adj Print adjustment (position). Range: -99 to 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 Margin adjustment (position). Range: -99 to 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 do not effect the
supply position.
C5. speed_adj Print Speed in inches per second (ips). The only valid settings for 300 dpi are 20 and 30. Options:
0 This is the default and the printer prints at 3.0 ips.
20 Uses a print speed of 2.0 ips.
30 Uses a print speed of 3.0 ips
40 Uses a print speed of 4.0 ips (not for 300 dpi)
50 Uses a print speed of 5.0 ips (not for 300 dpi)
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 prints at the default
speed (3.0 ips), and uses the default printhead width.
2-8 CONFIGURING THE PRINTER