Re: Postscript printer, serial or parallel cable?

2003-12-24 Thread Chris Howells
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On Sunday 21 December 2003 21:54, Doug Poland wrote:

> The handbook states that I can use serial or parallel cabling to a
> postscript capable printer but there may be some advantage to a serial
> cable as it is bi-directional.  I've got several newer IEEE

It also says "In general, serial interfaces are slower than parallel
interfaces", which would be a major factor for me.

> something-or-another parallel cables lying around unused.   They were
> rather expensive and, IIRC, proported to be bi-directional.

I see no reason to not use a parallel cable. They aren't too slow, and I
haven't really had any problems with bi-directional parallel printing even on
older hardware.

> Question:  Is a serial hookup preferable to parallel?  As a future

In my opinion, not. But then again I've never tried serial. The idea of trying
to configure a serial printer sounds fairly hideous to me... speed, stop
bits, parity... no thanks.

Personally I would attempt to obtain a JetDirect card for the printer and give
it an ethernet interface. They are rather expensive new, but you can probably
get one cheap from ebay. I did :)

> possiblity, this modest FBSD box may become a dedicated print server
> with a color laser and ink jet also hanging off it.  I'll probably
> install CUPS and "share" it with windows users via Samba.

That's the setup I have here. Works great with CUPS and the hpijs drivers.

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Re: Postscript printer, serial or parallel cable?

2003-12-22 Thread Warren Block
On Sun, 21 Dec 2003, Doug Poland wrote:

> I recently got my hands on a free (woowho!) HP 4050 printer.

That's an excellent printer, and works well with FreeBSD.  (I've got a
4000, and use about a dozen 4050s heavily with a homegrown FreeBSD
printing system at a client location.)

> I'm going to hook it up to a FreeBSD 4.9-STABLE server.  The printer
> has two serial (one male/one female) connectors,

One's serial, one's a connector for auxiliary add-ons (HDD15, I think).

> a Centronix port, and
> some odd looking port that looks like you plug a mouse into it.

I think that one is for the optional IR receiver.  Never seen one of
those for real, though.

> The handbook states that I can use serial or parallel cabling to a
> postscript capable printer but there may be some advantage to a serial
> cable as it is bi-directional.  I've got several newer IEEE
> something-or-another parallel cables lying around unused.   They were
> rather expensive and, IIRC, proported to be bi-directional.

Use the parallel.  Serial works, but there's little to recommend it any
more.  It used to be that serial let you program PostScript directly.
Any more, you'd just run Ghostscript for that.

However, there's a catch.  With both parallel and USB, I've found
printing from FreeBSD's lpd to be relatively slow.  There are a few
other comments on this to be found in Google, but no resolution.  (I've
noticed it with lasers and inkjets and different types or settings of
parallel ports--PIO, EPP, ECP.)

So my suggestion is to first try parallel and test it for speed.  If you
notice it taking a very long time for large data transfers, shop for the
cheapest EIO JetDirect you can find and put the printer directly on your
network.

-Warren Block * Rapid City, South Dakota USA
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Re: Postscript printer, serial or parallel cable?

2003-12-21 Thread Scott W
Doug Poland wrote:

Hi,

I recently got my hands on a free (woowho!) HP 4050 printer.  I'm
going to hook it up to a FreeBSD 4.9-STABLE server.  The printer has
two serial (one male/one female) connectors, a Centronix port, and
some odd looking port that looks like you plug a mouse into it.
The handbook states that I can use serial or parallel cabling to a
postscript capable printer but there may be some advantage to a serial
cable as it is bi-directional.  I've got several newer IEEE
something-or-another parallel cables lying around unused.   They were
rather expensive and, IIRC, proported to be bi-directional.
Question:  Is a serial hookup preferable to parallel?  As a future
possiblity, this modest FBSD box may become a dedicated print server
with a color laser and ink jet also hanging off it.  I'll probably
install CUPS and "share" it with windows users via Samba.
Thanks for your input

 

If I'm not totally mistaken (been a while since I've used a serial 
printer for anything), the parallel should be a fair amount quicker- the 
only thing I remember about the serials is it was easier/cheaper to find 
long serial cables, which was important when a server in the server room 
or on another floor was doing print server duties for a printer in a 
publicly accessible area

Any reasonably modern parallel cable and parallel port is also 
bi-directional, so the only advantage I see with serial is if you're 
cabling it like above...

Scott

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