Braillo 200, Instruction Manual

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BRAILLO
M
NORWAY AS B 200
4
Note! If text of less than two pages, or text with an odd number of pages, is received without being
followed by FF on the last page, the Printer will wait for more text or FF. This is due to the double-
sided operation of the printer. It waits for a signal that its buffer contains a full two page print job
before it begins printing.
1.4 Interfacing to Computer
Data can be transmitted from the computer to the Printer in two ways, either via the serial or the parallel
port. Serial transmission goes through an RS 232 C interface. Parallel transmission uses a Centronics
compatible interface.
Both connectors are of the 25 pin D-sub types, and are electrically isolated from the computer.
Serial communication:
Connect the enclosed cable, ensure that the computer and the Printer have exactly the same transmission
settings. If not, they can be changed either on the computer or the Printer. Braillo Norway recommends
a baud rate of 9600 Baud for quick and reliable communication.
When the Printer is delivered from Braillo Norway, the serial port has the following transmission settings:
Baud rate: 9600
Parity: NO
Data bit: 8
Stop bit: 1
To change these settings on the Printer, see chapter 2.1 "Operating Panel". To make changes on your
computer, consult the user manual.
If changes in the transmission settings are to be done on the computer, we recommend that these changes
are added in the start-up file, AUTOEXEC.BAT, so that they occur automatically with each startup. The
command for this might be: MODE COM1:96,N,8,1,P.
Parallel communication:
Connect the enclosed cable, ensure that the Printer is set for parallel communication, and start printing.
The Printer recognizes the following control codes:
CR:
New line (fills the rest of the line with space).
LF: New line (fills the rest of the line with space).
If both CR and LF, in any order, immediately follow each other, only one new line command is executed
by the Printer.
FF:
New page (fills the rest of the page with space).
(After 2 x FF the paper is fed one sheet forward, filling the rest of the page plus the next page with blank
space).
If the lines are not terminated with CR or LF, the text which follows will be printed on the same line, until
the line length set in the Printer is filled. Remaining characters will be wrapped to the next line. The same
situation will occur if FF is missing in the text, the text which follows will appear on the same page,
because there is no internal text formatting.
The Printer can also be controlled by ESC-sequences to change its settings and modes. Please see chapter
2.7 "Escape-sequences".