User`s manual

BD2-1220/1221 User’s Manual

APPENDIX 1. DESCRIPTION OF PAGE MODE

The control board has two print modes: STANDARD and PAGE.

In STANDARD MODE, the control board prints or feeds paper each time it receives a print or paper feed

command. In PAGE MODE, when the control board receives print commands and/or form feed commands, it

simply forwards them to the specified print area of memory. Only when an ESC+FF or FF is executed, all the

data mapped in the print area will then be printed in a batch.

For example, suppose you executed a print and line feed for data “ABCDEFG”<LF>. In STANDARD

MODE, the data “ABCDEFG” is printed and paper is advanced one line. In PAGE MODE, the data

“ABCDEFG” is written in the specified print area of memory, and the memory location for the storage of the

next print data is shifted one line.

The control board enters PAGE MODE with an ESC+L, so that all commands received after that point are

handled in PAGE MODE. When an ESC+FF or FF is executed, the data received until then is printed in a

batch. When an FF is executed, the data received until then is printed in a batch, after which the control board

returns to STANDARD MODE. An ESC+S causes the control board to immediately return to STANDARD

MODE; any print data, however, that has been stored in PAGE MODE is not printed. Instead it will be

cleared.

Command values in STANDARD MODE and PAGE MODE:

(1) The values set with commands are common to the STANDARD and PAGE MODES. The values set with

any of the four commands listed below are, however, treated differently and stored separately for the

STANDARD and PAGE MODES.

ESC+sp, ESC+2, ESC+3, FS+S

(2) The maximum printable size of a bitmap image is 576 dots (432 dots for 58-mm wide paper) for

STANDARD MODE. In PAGE MODE, the size can be extended up to 831 bits in the y direction (Paper

feed direction) if 831 bits are reserved for y of the print area set by ESC +W and the value of print

direction “n” specified by ESC +T is 1 or 3.

[Switching Between STANDARD MODE and PAGE MODE]

STANDARD MODE PAGE MODE

ESC FF

ESC L

ESC S