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User's Guide
D-20 Code Sets
Table D-3. AMT Datasouth and Diablo 630 Escape Sequences––continued
Function ASCII Hexadecimal Decimal Description
Graphic Functions––continued
Interpret next graphics ........... ESC @ 8 1B 40 38 27 64 56 This sequence causes printer logic to interpret the column
column count as 16-bit count in the next AMT Datasouth graphics escape sequence as a
16-bit integer:
Number of columns = (256 x n2) + n1
For example, to print 360 columns of dots, n2 would be 1
and n1 would be 104 (360 = (256 x 1) + 104).
This sequence affects only the next AMT Datasouth graphics
escape sequence sent.
Decompress next graphics ....... ESC @ c 1B 40 63 27 64 99 This sequence causes printer logic to decompress the
list using TIFF "Packbits" graphics list in the next AMT Datasouth graphics escape
sequence using industry-standard TIFF 4.0 "Packbits"
decompression.
"Packbits" decompression causes printer logic to interpret the first
code in the list as a control code. If the value of the control code
is 0 to 127 (decimal), printer logic inter-prets the codes that
follow as uncompressed graphics data. The actual number of
codes interpretted as uncompressed graphics data is determined
by the value of the control code plus one. If the value of the
control code is 129 to 255 (decimal), printer logic interprets the
next code as a com-pressed code that should be repeated up to
128 times. The actual number of times that the code is repeated
is deter-mined by subtracting the value of the control code from
256. If the value of the control code is 128 (decimal), printer
logic disregards it. After printer logic interprets the control code
and processes the required graphics data, the next code in the
data stream after the affected graphics data becomes the next
control code and the process repeats.
This sequence affects only the next AMT Datasouth graphics
escape sequence sent.
Printhead microshift up ........... ESC @ B 1B 40 42 27 64 66 This sequence moves the printhead up 0.0042 inch, which
enables the printing of two-pass graphics with up to 240 dots per
vertical inch. When graphics end, the printhead moves back
down automatically.
)Note: For more detailed information on this escape
sequence, refer to AMT Datasouth Technical Notes––Graphics,
available separately from AMT Datasouth.
Wide graphics These sequences enable and disable wide graphics printing,
Enable .................................. ESC @ w 1B 40 77 27 64 119 wherein graphics can print up to 16 inches across on wide-
Disable ................................. ESC @ s 1B 40 73 27 64 115 carriage printers and up to 11 inches across on narrow-carriage
printers. Margins extend beyond the normal maxi-print positions.
Text printing is unaffected by this escape sequence. To print full
wide graphics, make sure the cur-rent horizontal print position is
0.
integer
decompression
User's Guide
D-20 Code Sets
Table D-3. AMT Datasouth and Diablo 630 Escape Sequences––continued
Function ASCII Hexadecimal Decimal Description
Graphic Functions––continued
Interpret next graphics ........... ESC @ 8 1B 40 38 27 64 56 This sequence causes printer logic to interpret the column
column count as 16-bit count in the next AMT Datasouth graphics escape sequence as a
16-bit integer:
Number of columns = (256 x n2) + n1
For example, to print 360 columns of dots, n2 would be 1
and n1 would be 104 (360 = (256 x 1) + 104).
This sequence affects only the next AMT Datasouth graphics
escape sequence sent.
Decompress next graphics ....... ESC @ c 1B 40 63 27 64 99 This sequence causes printer logic to decompress the
list using TIFF "Packbits" graphics list in the next AMT Datasouth graphics escape
sequence using industry-standard TIFF 4.0 "Packbits"
decompression.
"Packbits" decompression causes printer logic to interpret the first
code in the list as a control code. If the value of the control code
is 0 to 127 (decimal), printer logic inter-prets the codes that
follow as uncompressed graphics data. The actual number of
codes interpretted as uncompressed graphics data is determined
by the value of the control code plus one. If the value of the
control code is 129 to 255 (decimal), printer logic interprets the
next code as a com-pressed code that should be repeated up to
128 times. The actual number of times that the code is repeated
is deter-mined by subtracting the value of the control code from
256. If the value of the control code is 128 (decimal), printer
logic disregards it. After printer logic interprets the control code
and processes the required graphics data, the next code in the
data stream after the affected graphics data becomes the next
control code and the process repeats.
This sequence affects only the next AMT Datasouth graphics
escape sequence sent.
Printhead microshift up ........... ESC @ B 1B 40 42 27 64 66 This sequence moves the printhead up 0.0042 inch, which
enables the printing of two-pass graphics with up to 240 dots per
vertical inch. When graphics end, the printhead moves back
down automatically.
)Note: For more detailed information on this escape
sequence, refer to AMT Datasouth Technical Notes––Graphics,
available separately from AMT Datasouth.
Wide graphics These sequences enable and disable wide graphics printing,
Enable .................................. ESC @ w 1B 40 77 27 64 119 wherein graphics can print up to 16 inches across on wide-
Disable ................................. ESC @ s 1B 40 73 27 64 115 carriage printers and up to 11 inches across on narrow-carriage
printers. Margins extend beyond the normal maxi-print positions.
Text printing is unaffected by this escape sequence. To print full
wide graphics, make sure the cur-rent horizontal print position is
0.
integer
decompression