Registration Mark Threshold Commands; Auto-Size Commands - Microcom 428M Operator's Manual

Printer Commands
printer off and back on. Even though the software attempts to maximize the
number of writes, Flash memory does have a maximum number of writes so
the D143 command should only be sent when it is imperative that the
configuration is written to flash memory. The D32 command is typically
recommended to set the non-volatile commands that require a restart. The
printer will update and write the configuration to flash on normal power downs.
This command may be used to start using certain non-volatile system
parameters (head parameter and soft switch commands).
5.4.4

Registration Mark Threshold Commands

While the printer is designed to work with a wide variety of label media, it is sometimes
necessary to adjust the printer's thresholds in order to obtain proper registration and
operation. The numerical value in which the printer senses a registration mark is referred as
the threshold value.
^A ^D COMMAND
XX 90 Reflective Detection Threshold: This command is non-volatile and is used
to set the reflective or blackline threshold value (0-255) at which the printer
detects a blackline used for print registration. The default is set to a value of
100 and should work for most media types.
XX 91 Transmissive Detection Sensitivity: This non-volatile command is used to
set the transmissive or GAP threshold value (0-255) at which the printer
detects gap and/or blow-hole registration marks. The default is set to a value
of 30 and should work for most media types.
XX 124 Stock Out Threshold: This command is non-volatile and is used to set the
stock out threshold value (0-255) at which the printer detects an out of stock or
>LOW STOCK< error condition. The threshold is typically set to a value that is
80 percent of the transmissive sensor reading when no media is detected by
the transmissive sensor. This value is calibrated at the factory and should not
require adjustment unless the transmissive sensor has been replaced.
X 129 Auto Set Threshold: This command will cause the printer to scroll 1350 dots,
determine the proper threshold value, and set the nonvolatile threshold for
proper registration. The ^Ax selects either reflective or transmissive detection.
0 Automatically sets the transmissive threshold value.
1 Automatically sets the reflective threshold value.
5.4.5

Auto-size Commands

The auto-size command attempts to automatically calculate important format values for the
label header including LSY, GAP, AGD, SPG, ^D90, and the ^D91 values. The printer
feeds a sample of labels through the GAP sensors and takes an average of the values it
receives. The auto-size command uses the appropriate sensors to detect the registration
marks set by the ^D47 command. Before issuing the auto-size command, verify that the
^D47 is set to the proper setting for the media being used.
When using media that contains a blackline for the registration mark, first execute the
^A1^D47<CR> command sequence before issuing the auto-size command or the results
may be invalid.
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Chapter 5