NCR 7158, Owner'S Manual, Page: 206 / 314

7-78 Chapter 7: Programming Guide
Select Double-Density Graphics
ASCII: ESC Y n 1 n 2 d 1 … d n or ESC L n 1 n 2 d 1 ... d n
Hexadecimal: 1B 59 n 1 n 2 d 1 ... d n or 1B 4C n 1 n 2 d 1 … d n
Decimal: 27 89 n 1 n 2 d 1 ... d n or 27 76 n 1 n 2 d 1 ... d n
Value of n :
Value of n (8-Dot Single
Density Mode)
Value of n (24-Dot Single
Density Mode)
Value of
d
n 1 + (256 x n 2) 3 x [ n 1 + (256 x n 2)] Number of Bytes of
Data (Printed Down,
Then Across)
Enters one line of 7 (slip in 7156 mode) or 8-dot double-density
graphics into the print buffer. Any print command is required to print
the line, after which the printer returns to normal processing mode.
The number of bytes sent is represented by the formulas in the table.
Each bit corresponds to one horizontal dot. Compare to Set Bit Image
Mode (1B 2A, m=1) earlier in this document.
Exception:
1B 4C n 1 n 2 d 1 … d n is only valid in A756 Emulation Mode.