Re: Printer and Zip drive don't work together.

Matthew Vanecek (mev0003@unt.edu)
Tue, 18 May 1999 21:58:43 -0500 (CDT)


On 18 May, Tim Waugh spewed forth:
:: On Mon, 17 May 1999, Matthew Vanecek wrote:
::
:: > The zip drive works regardless of the presence of the printer. To use
:: > the printer, I have to unplug the Zip drive and plug in the printer to
:: > lpt. Everything is compiled into the kernel, parport, parallel
:: > printer/PC-hardware, etc.
::
:: If you plug the printer in, print with it, unplug it, plug the Zip drive
:: (freshly powered) in and plug the printer into that, does printing work?
:: If not, I'd suspect the Zip drive hardware.
::
:: Tim.
:: */
::

Well, I just tried it with a different Zip drive. I switched cables
around, too. The zip drives both work fine. I can mount, read, write,
whatever, zip disks. But the pass-through refuses to work. The
printer seems like it's not connected. Then I unplug the Zip drive,
and plug the printer in, and voila!, the print queue starts spewing
forth in paper form.

It's definitely not a hardware problem. I tested both on my NT box,
and printing, etc, works just fine through the pass-through. My only
option left is to believe it's something messed up in the parport code.
Has it changed since 2.1.x? This same setup worked in 2.1.x (well,
the 90s, anyhow). I'll double-check the BIOS one more time to be sure
the port is set up right. Hopefully I will find something I've missed
in there.

BTW, this happens on 2.2.6 - 2.2.9.

-- 
Matthew Vanecek
Course of Study: http://www.unt.edu/bcis
Visit my Website at http://people.unt.edu/~mev0003
For answers type: perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
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For 93 million miles, there is nothing between the sun and my shadow
except me. I'm always getting in the way of something...

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