Cognitive Solutions A776 Manual De Usuario

A776-PG00001 C 12/09 

A776 (B780) Programming Guide

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.

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).

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.

ESC . m n rL rH d1 … dn 

Hexadecimal  1B 2E m n rL rH d1 … dn 

27 46 m n rL rH d1 … dn

horizontal offset from left margin = 8 x m dots

number of data bytes that compose the raster

number of times the raster has to be printed  =256 x rH + rL

data bytes

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.

Advanced raster graphics is not available in page mode.