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Spectre GCR Manual Manuals - Atari Documentation Archive

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Printers and <strong>Spectre</strong><br />

If3}.<br />

V<br />

the<br />

:.<br />

serial (RS-232) port on the ST, as they should.<br />

Now you have a choice as to whether or not the "Mac<br />

: :<br />

printer port" (the one on the Mac marked with the little<br />

printer) talks to the <strong>Atari</strong>'s serial or parallel port; usually, it's<br />

parallel, but you can force it to serial if you need to for a serial printer,<br />

like the ImageWriter.<br />

Of course, then you've got a problem! Anytime the Mac talks to<br />

the Mac modem port, it will output to the ST's serial port, and anytime<br />

the Mac talks to the Mac printer port, it will also output to the ST's<br />

serial port. If you don't have the proper device connected at the proper<br />

time, you're going to have trouble. Or garbage. Or something.<br />

You cannot get away with having both a modem and the printer<br />

hooked up to the serial port at the same time, even with a three-way<br />

cable. The modem and printer will "fight" one another for control, and<br />

whoever loses sometimes loses with a blown driver chip. Please don't<br />

try. It's also not good for cables and tempers to swap back and forth<br />

all the time.<br />

If you have to use a serial printer and serial modem, please get an<br />

"AlB switch box", and manually switch between devices when you<br />

need to. CompuAdd sells those boxes for about $14. It's much more<br />

convenient than swapping cables around. For instance, you set the<br />

switch to the modem when you're in a telecommunications program;<br />

then switch to the printer when you need to print. That way, only one<br />

device is hooked up to the ST at any one time. (I use one of these on<br />

my ST, and it works quite well.)<br />

This is all further complicated if you dccide to use an <strong>Atari</strong> Laser<br />

Printer, but l'll leave that for latcr.<br />

The Software Part of Printing<br />

A whole manual could be dcvoted to the art of getting the Mac to<br />

print something, especially and particularly if you're not using an<br />

A pple-manufacturcd printcr.<br />

As I mentioned earlier, the Mac is very "dot" oriented; to print<br />

something, it outputs a string of dots, specially coded, to the<br />

ImageWriter. The ImageWriter then puts the dots on the page, and if<br />

everything works right, the dots form letters (if you're printing<br />

102

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