Axiohm 7156 Especificações Página 113

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7156 Owner’s Guide Commands
October 1995 105
Double-Density Graphics
Enters one line of 8-dot double-density graphics into the print buffer. Excess data
is accepted but ignored. Any print command is required to print the data, after
which the printer returns to normal processing mode.
Double-density mode allows 0-448 dot columns on the receipt, 0-660 dot columns
on the slip. The number of bytes sent is represented by the formulas in the second
table. Each bit corresponds to one horizontal dot. Adjacent horizontal dots
(overlapping dots) will not be printed on the slip. Compare this command to Set
Bit Image Mode (1B 2A...).
Hex Decimal ASCII
1B 4C n1 n2 d1...dn
1B 59 n1 n2 d1...dn
27 76 n1 n2 d1...dn
27 89 n1 n2 d1...dn
ESC L n1 n2 d1...dn
ESC Y n1 n2 d1...dn
Value of n (8-Dot
Double-Density Mode) Value of d
n1 + (256 x n2)
Number of Bytes of Data*
Printed left to right.
Define Downloaded Bit Image (Receipt Station)
Enters a downloaded bit image (such as a logo) into 16K of RAM for the receipt
station with the number of dots specified by n1 and n2. The downloaded bit
image is available until power to the printer is turned off, or until Initialize
Printer (1B 40), another Downloaded Bit Image (1D 2A), or Define User-
Defined Character Set (1B 26) is received.
The downloaded bit image and user-defined characters cannot be defined at the
same time. Any user-defined characters will be cleared from RAM when this
command is used. See the illustration for a graphic representation of the
downloaded bit image.
Hex Decimal ASCII
1D 2A n1 n2 d1...dn 29 42 n1 n2 d1...dn GS * n1 n2 d1...dn
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