Set or cancel unidirectional printing
EIA-232 Syntax:
ESC U n or X'1B55;n'
where:
n=00 Cancels unidirectional printing
n=01 Sets unidirectional printing
Default:
n=00
Remarks:
This is valid in the document station in portrait mode only, when there must
be two passes of the print head to print one print line.
Example: double-high or emphasized print.
When unidirectional mode is set to double-high characters, it takes three
passes of the print head.
In bidirectional mode, printing double-high characters takes only two passes
of the print head.
Unidirectional printing takes longer but increases the quality of the print.
Request document length for landscape print
EIA-232 Syntax:
GS N X'02' NULL or X'1D;4E;02;00'
Purpose
To determine the length of the document in the Landscape Print station
Remarks
v Not supported on printer Models TI1 and TI2.
v Document length data is sent in status bytes 9 and 10.
v Status byte 5, bit 3, is sent to indicate that extra data (beyond status byte
8) is attached.
Set document length for landscape print
EIA-232 syntax:
GSc1n where n = 2 bytes indicating the length of the document in print
motor steps.
Remarks
v Not supported on printer Models TI1 and TI2.
v Document length data is sent in status bytes 9 and 10.
v Status byte 5, bit 3, is sent to indicate that extra data (beyond status byte
8) is attached.
Note: There are 50 motor steps per inch. A 6-inch document = 300 steps. (Use
295 to allow a margin for error; n=0x127.) To calculate the number of dots
per printed line:
v for 150 DPI (dots per inch)
[(motor_steps - 75 * 3.12] - 10 = dots per line
v or for a 6-inch document
Updated April 2, 2009
Appendix D. EIA-232 programming information 133
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