The Device Connected setting is fairly straightforward. Select Printer if you're connecting a printer or plotter to the port. Select Modem if you're connecting a modem to the port.

Line length indicates the number of characters that your printer will print per line before generating a carriage return (sending the "carriage" to the left margin to start a new line). Many applications let you set the line length from within the application. If that's the case or if you find the computer adding carriage returns where they don't belong, choose Unlimited and the computer won't try to control line length.

If, on the other hand, you find your printer ignoring the right margin and printing right off the page, you can use this option to insert a carriage return after every 40, 72, 80, or 132 characters.

If you're connecting a modem, leave the line length set to Unlimited.

Some printers and applications automatically generate a line feed (LF)—go to the next line—after each carriage return (CR). Others don't. If you try printing something and everything comes out unintentionally double-spaced, make sure the automatic line feed switch on your printer is set to OFF. If you still get double spacing, the extra line feed is coming from your application. If you can't turn it off there, you can use the Delete First LF After CR option to cancel the extra line feed.

Changing printer/modem port settings

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