Cognitive Solutions A776, B780 Print advanced raster graphics, dot single-density, n1 + 256 × n2

Chapter 5: Programming commands  67

Slip Station

Value of m	Mode	No. of dots (vertical)	No. of dots (horizontal)
0	8-Dot single-density	8 (72 DPI)	210	(70 DPI)
1	8-Dot double-density	8 (72 DPI)	420	(140 DPI)
32, 33	Not available on slip

In single density, one byte (8-dots) is printed in each full dot column. In double-density, one byte is printed in each half/full dot column, but adjacent horizontal dots (overlapping dots) are not printed.

Value of n:

Value of n (8-dot single-density mode)	Value of n (24-dot single-density mode)	Value of d
n1 + (256 × n2)	3 x [n1 + (256 × n2)]	Number of bytes of data*

*Printed left to right (8-dot mode); Printed down then across (24-dot mode).

Formulas
8-dot single-density	n1 + (256 × n2)
24-dot single-density	3 x [ n1 + (256 × n2)]

Sets the print resolution and enters one line of graphics data 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.

See the illustration for graphic representations of the bit image on next page.

In A756 emulation mode, slip graphics are only seven dots high.

Print advanced raster graphics

ASCII	ESC . m n rL rH d1 … dn
Hexadecimal	1B 2E m n rL rH d1 … dn
Decimal	27 46 m n rL rH d1 … dn
Value of m:	horizontal offset from left margin = 8 x m dots
Value of n:	number of data bytes that compose the raster
Value of r:	number of times the raster has to be printed =256 x rH + rL
d1 … dn:	data bytes
Range:	0<= m <= 72
	0<= n <= 72
	0<= r <= 65535
	0<= d1 … dn <= 255

Prints a horizontal raster of graphics data one or multiple times. Horizontal offset and number of data bytes are variable and specified by parameters.

Exceptions

Advanced raster graphics is not available in page mode.

A776-PG00001 C 12/09 A776 (B780) Programming Guide