H - enter heat setting, M set metric mode, N set inch mode (imperial) – Datamax DGL User Manual
Page 23: P set print speed, Q set quantity of labels to print, R set row offset amount, R recall stored label format
Label Formatting Command Functions
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beginning with register A, ending at register P, and incrementing with each
instance of the G command use.
H - Enter Heat Setting
This command changes the “on time” of elements of the printhead. (The
default setting can be changed through the keypad). An increase or decrease
in this value results in a change of heat applied by the printhead to the media,
lightening or darkening the print contrast accordingly. This is helpful when
using different media types, each requiring a different amount of heat to
properly image the media. The host device can send this command value to
correct the heat setting per the application.
m Set Metric Mode
This command sets the printer to measure in metric. When this command is
sent, all measurements will be interpreted as metric values, (e.g., a column
offset of 0010 will be interpreted as 1.0mm). All printers default to Imperial
(inch) mode. Menu selectable.
n Set Inch Mode (Imperial)
This command sets the printer to measure in inches. When this command is
sent, all measurements will change to inches. All printers default to Imperial
units. Menu selectable.
P Set Print Speed
This command sets a print speed for a label or batch of labels.
Q Set Quantity Of Labels To Print
This command sets the number of the label copies to be printed. All printers
default to 1.
R Set Row Offset Amount
This command allows vertical adjustment of the point where printing begins.
This is useful when a single format is printed on several different types of
labels that contain pre-printed information. However, if the pre-printing does
not appear in the same place on every label, data may overprint the pre-
printed areas. The ‘R’ command instructs the printer to print label formats
nnnn increments above the position the format specifies. Valid input values
are numbers between 0000 and 9999, (refer to the C, Set Column Offset
Amount Command.)
r Recall Stored Label Format
This command is used to retrieve entire label formats that have been stored
on a memory module.