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From: pwong@batcomputer.tn.cornell.edu (Patrick Wong)
Newsgroups: comp.sys.dec,comp.periphs,comp.sys.ibm.pc.hardware
Subject: HELP: How to hook up a LQP02 printer with a pc via serial port?
Summary: cabling problem between a LQP02 printer and a pc
Message-ID: <1991Jan26.225528.23394@batcomputer.tn.cornell.edu>
Date: 26 Jan 91 22:55:28 GMT
Organization: Cornell Theory Center
Lines: 41

Hi, netters:

I have just inherited a DEC LQP02 daisywheel printer (obviously w/o manual)
and I have been trying to get it to work with my pc via the serial port that
the printer has.  The printer has two bands of dip switches: SP1 and SP2.
There is a simple chart on the inside of the front panel cover of the printer
explaining all these switches.  Therefore, I believe I set all the
communication parameters correctly without any doubt.  (Though the chart does
not say anything about the 2nd band of dip switches except their default
positions.  Thus, I left them in their default positions while only setting
the switches of 1st band).

I used a serial cable (which is actually a modem cable that I use to connect
between the serial port on my pc and a modem) and a NULL modem to connect
to the printer.  This is based on the assumption that both LQP02 and my pc
are DTE.  Though I can get the power light lit up (and the DSR light lit up
if I set dip switch 6 of 1st band SP1 at up-position), I cannot get it to 
print at all.

I tried 2 different ways to send things to the printer:
1.  I used a software to send things to the printer after setting up
    the comm. parameters within the software to be identical to those
    of the printer.

2.  I did the followings:

    >MODE COM1 9600,e,7,1,p
    >MODE LPT1=COM1
    >PRINT file (or COPY file PRN)


Both methods did not result in any printing at all.  I think the cable
that I used may not be inappropriate, although I did try also using it
without the NULL modem in-between the pc and the printer.  So, what's
the deal here?

Please HELP !!!

Patrick Wong
pcw@squid.graphics.cornell.edu
pwong@tn.theory.cornell.edu