User`s manual

use other settings than those given earlier, you need to reset the parameters on the
LaserWriter II by sending a PostScript program to the printer.
The handshake, described earlier, must also be the same on your MS-DOS computer and the
LaserWriter II. You use software commands to change the handshake and the printing
parameters on the LaserWriter IInt. On the LaserWriter IIntx, you can change the handshake
with the same method, or by resetting switches 5 and 6, as described earlier.
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Parameters for the LaserWriter IInt
Your LaserWriter IInt is preset to receive information with no parity check, 7 data bits, and 1
stop bit, with the XON/XOFF handshaking protocol. If both switches are down, the data transfer
rate is 1200 baud. If both switches are up, the 25-pin port is disabled. In any other switch
configuration, the rate is 9600 baud (as set during manufacturing) but can be changed by the
program below.
Note: If you change any switch setting while your LaserWriter IInt is printing, the printer
stops printing immediately.
You can change any of those settings by sending the following PostScript program to the
LaserWriter IInt:
statusdict begin 25 sccbatch exch pop
OPTIONS eq {stop} if
serverdict begin 0 exitserver
statusdict begin 25 BAUD OPTIONS setsccbatch
Note: To change settings for use with the Diablo emulation mode, substitute the characters
interactive for batch in the two words where batch appears.
Instead of typing BAUD when typing the program, type the data transfer rate, which can be
300, 600, 1200, 2400, 3600, 4800, 9600, 19200, 38400, or 57600.
Use Table C-1 to determine the Options number. Type that number wherever OPTIONS appears
in the program.
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Parity Handshake 1 stop bit 2 stop bits
7 data bits 8 data bits 7 data bits 8 data bits
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None (Space) XON/XOFF 0 or 32 64 160 192
DSR/DTR 4 or 36 68 164 196
ETX/ACK 8 or 40 72 168 200
Odd XON/XOFF 33 65 161 193
DSR/DTR 37 69 165 197
ETX/ACK 4173169 201
Even XON/XOFF 34 66 162 194
DSR/DTR 38 70 166 198
ETX/ACK 4274170 202
None (Mark) XON/XOFF 35 67 163 195
DSR/DTR 39 71 167 199