User`s manual

Chapter 2 Configuring the PCL-II Emulation with Control Codes

The ESC*b#Y escape sequence allows you to skip multiple adjacent blank

lines. The # of raster lines parameter is the decimal number of blank raster

lines to skip. The size of the blank raster line to be skipped is equivalent to the

currently set vertical raster graphics resolution. The advantage of using this

escape sequence over sending multiple raster data transfer escape

sequences containing blank raster lines is the escape sequence is processed

faster and the paper is moved faster.

The ESC*rB sequence informs the printer that all the raster data has been

transferred.

The following example illustrates how to send three lines of raster graphics to

the printer.

ESC*rAESC*b2WDc

ESC*rA Prepares printer for raster graphics

ESC*b2W Indicates two bytes of data to follow

D First byte of graphics data

c Second byte of graphics data

ESC*b2WL@

ESC*b2W Indicates two bytes of data to follow

L First byte of graphics data

@ Second byte of graphics data

ESC*b2W$+ESC*rB

ESC*b2W Indicates two bytes of data to follow

$ First byte of graphics data

+ Second byte of graphics data

ESC*rB Raster graphics complete

Many systems perform an automatic line feed after each line of data. The

system’s automatic line feed must be suppressed or else the raster lines will

not be adjacent to each other. A file equation which specifies the line length

(for example, RESC=-219) may be used to suppress the automatic line feed

along with carriage control directives, such as “+”.

Graphics files must be raster graphics files in the format described here in

order to print on the printer. To print vector graphics files, such as graphics

files created for plotters, a vector-to-raster conversion must be performed on

the data. (Vector-to-raster conversion is NOT a standard feature of the

printer.) Text and graphics cannot mix on the same line due to grid conflicts.

Raster graphics use 8-bit data.

Underlining

The ESC&dD sequence enables the automatic underlining mode. In this

mode, each printed character and space is underlined until the printer

receives an ESC&d@ sequence. The underline enhancement is disabled in

the default state. Underlining only affects forward horizontal movement such

as SP (space), DATA, or forward horizontal cursor moves; reverse

movements such as BS (backspace), CR (carriage return) and negative

horizontal cursor moves are not affected.