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From: acm@grendal.Sun.COM (Andrew MacRae)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Changing CR/LF to CR on printer output
Message-ID: <924@jethro.Corp.Sun.COM>
Date: 21 Feb 90 21:07:50 GMT
References: <1990Feb21.122448.22508@lilink.com>
Sender: news@jethro.Corp.Sun.COM
Reply-To: acm@grendal.EBay.Sun.COM (Andrew MacRae)
Organization: Sun Microsystems, Inc.  Mt. View, Ca.
Lines: 19

In article <1990Feb21.122448.22508@lilink.com> mikej@lilink.com (Michael R. Johnston) writes:
>I have some printers here locally that I used to use with a TRS80 computer.
>These printers ASSUME a linefeed when they see a carraige return. Consequently
>when I plug them into a PC and try to print everything is double spaced. I.E
>the printer sees the CR and does a CR/LF and then it sees an LF again and does
>another linefeed. How can I change the system so it knows NOT to send the extra
>line feed? It is not possible to reconfigure the printer. Do I need to write 
>a driver?

(Assuming you are talking about a parallel printer port...)

I had to do this about four years ago.  I had an Apple IIe, an Atari 800, and
an IBM clone all hooked up to a switch box.  In order to defeat the extra
linefeed I had to ground one of the pins.  I don't have a Centronics pinout
nearby, but as I recall it was pretty plain as to which pin needed grounding
from the descriptions given.  (The pin is called something like 'LineFeed
Signal'.)

						Andrew MacRae