Appendix A Programming Guide
A-24
A-5.4 Programming
Programming of the resident barcodes is achieved by means of six new control
sequences added to the PCL5 emulation.
The print position and print orientation of a barcode is controlled by standard PCL5
commands.
Barcode print position
Printing of any barcode starts at the current actual cursor position. The position
can be set with any standard PCL5 cursor movement command. Moving the
cursor with printed characters, spaces and carriage return and line feed is the
simplest possibility.
Setting the cursor to an absolute or relative position in PCL units is the best way to
position a barcode:
ESC * p P1 X absolute horizontal position to P1
ESC * p + P1 X relative horizontal position P1 to the left
ESC * p − P1 X relative horizontal position P1 to the right
ESC * p P1 Y absolute vertical position to P1
ESC * p + P1 Y relative vertical position P1 down
ESC * p − P1 Y relative vertical position P1 up
Note: – The barcode REFERENCE POSITION is the left upper edge except for
Postnet where the reference position is the character baseline.
– The cursor position is not changed after printing the barcode. The
cursor must be set to a new position for the next printable character.
– One PCL unit is the unit of measure for cursor movements. The default
value is 300 units per inch.
Barcode print orientation
Barcodes are printable in all four print directions, selectable with the following
PCL5 command:
ESC & a P1 P P1 = 0, 90, 180, 270 default = 0°
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