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ManualsBrandsApple ManualsComputer equipmentLaserWriter II SC
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Making the connection
Follow these steps to connect your MS-DOS computer to the 25-pin socket on your printer. The
25-pin socket and the switch panel, which contains two switches on the LaserWriter IInt and
six switches on the LaserWriter IIntx, are on the left side of your printer.
1. Connect the COM1 serial port on your computer to the printer's 25-pin socket (the RS-232
port).
If another device is already connected to the COM1 port, use the COM2 port. Your cable or
cables should include one modem eliminator. Note that some serial extension cables have built-
in modem eliminators.
If your computer has a 9-pin serial port, use a 9-to-25-pin adapter cable.
Note: If your computer has a standard serial port, such as those supplied with IBM PCs, then
you should be able to use standard cables.
2. If you have a LaserWriter IInt, set its switches as follows.
If you plan to use MS-DOS software that supports PostScript, switch 1 should be in the up
position and switch 2 should be down.
If you plan to use the Diablo emulator, switch 1 should be in the down position and switch 2
should be up.
3. If you have a LaserWriter IIntx, set its switches as follows.
If you plan to use MS-DOS software that supports PostScript, switch 2 should be in the down
position, and switches 3 and 4 should both be up. Switch 1 can be up or down.
If you plan to use the Diablo emulator, switches 2 and 3 should be in the down position and
switch 4 should be up. Switch 1 can be up or down.
If you plan to use the LaserJet+ emulator, switches 2, 3, and 4 should be in the down position.
Switch 1 can be up or down.
4. Switch on the printer.
The LaserWriter II prints a test page, indicating the mode-PostScript, Diablo 630, or
LaserJet+-that you've selected. In addition, the page reports which connector or connectors are
set to receive information. If you've followed the instructions above, the page should say RS-
232 9600 Baud. If the mode or connector is not what you want, switch off the printer, reset the
switches, and switch on the printer again.
5. Start up your MS-DOS computer.
6. Type the following two MS-DOS commands.