Citizen PPU-700II Specifications download pdf (Page 174)

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4.1.3 Mapping of Print Data in the Print Area

Print data is mapped in the print area as follows:

(1) The print area is set by ESC W. When the printer has finished all of the print and paper feed

actions specified before receiving an ESC W, the ESC W sets the right end (as viewed facing the

printer) as the start point (x0, y0) of the print area. The print area is a rectangle defined by two

edges extending from the start point (x0, y0): one edge running in the “x” (Horizontal) direction

by “dx” pitch (inclusive of the start point), and the other running in the “y” (Vertical) direction by

“dy” pitch. (If no ESC W is defined, the default values are used to define the print area.)

(2) With a print area defined by ESC W and a print direction specified by ESC T, when the printer

receives print data, the print data is mapped in the print area where point A (see the Figure 4-1

“Mapping Position for Character Data”) is used as the initial value of the start point. If the print

data consists of characters, this start point serves as the baseline.

If the print data is a downloaded bitmap image or a bar code, the print data is mapped with its

lower-left point B aligned to the baseline. (See the Figure 4-2 “Mapping Positions for Print

Data”.) When attempting to map the HRI characters of a bar code, however, the section above

the standard character height will not be printed.

(3) If print data (or the space to the right of a character) extends beyond the print area before a

command that involves a line feed (for example, LF or ESC J command) is received, a line feed is

automatically executed in the print area, so that the mapping position of the print data is moved

one line. The next mapping position will be the beginning of the line. In this case, the line feed

width is as defined by a command such as ESC 2 or ESC 3.

(4) By default, the line feed width is 1/6 inch, which is equivalent to 34 dots. If the print data for the

next line includes a vertically doubled or taller character, a downloaded bitmap image extending

two or more lines, or a bar code taller than the character height, the data, therefore, falls short

of the line feed width, causing the upper dots of the character to overlap the print data of the

current line. The line feed width needs to be increased.

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Citizen PPU-700II Specifications Page 174