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12. APPENDIX 1. PAGE MODE
12.1. Overview
The printer has two print modes: STANDARD and PAGE.
In STANDARD MODE, the printer prints or feeds paper each time it receives a print
or paper feed command. In PAGE MODE, when the printer 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 “ABCDEF”<LF>.
In STANDARD MODE, the data “ABCDEF” is printed and paper is advanced one
line. In PAGE MODE, the data “ABCDEF” 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 printer enters PAGE MODE with an ESC L, so that all commands received after
that point are handled in PAGE MODE. When an ESC 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 printer returns to STANDARD
MODE. An ESC S causes the printer 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.
[Switching Between STANDARD MODE and PAGE MODE]
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
(2) The maximum printable size of a bitmap image is 576 dots for STANDARD
MODE. In PAGE MODE, the size can be extended up to 575 bits in the y
direction (Paper feed direction) if 575 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.
STANDARD MODE
ESC L
ESC FF
ESC S
FF
PAGE MODE
Print
Print