Re: [NTLK] Newton print to serial port of HP LaserJet 4?

From: tfbiii_at_nbscomputers.net
Date: Tue Jul 02 2002 - 20:29:12 EDT


Did I miss that the serial port on the printer is a DB-9 and not the
round Apple DIN-8? If that's the case, forget my AppleTalk banter... You
would need the boxes. Sorry, older LJ's used to have the Apple Serial
port on them before they moved it to a JetDirect card...

Fred

-----Original Message-----
From: Karel Jansens [mailto:kareljansens_at_tiscalinet.be]=20
Sent: Tuesday, July 02, 2002 6:45 PM
To: newtontalk_at_newtontalk.net
Subject: Re: [NTLK] Newton print to serial port of HP LaserJet 4?

On Tuesday 02 July 2002 16:52, Johannes Wolf wrote:
> First there is the hardware connection to clarify:
> What cable did you use?
> The (Windoze)PC to Newt cable:
> - has a 9 pin SUB-D connector and the Printer will most probably have
a
> 25 pin SUB-D connector - this needs to be adapted

I did use the standard Newton-to-PC cable, with a 9-to-25 adapter and a=20
gender changer (the back of the LaserJet is a mess <G>). No crossovers.

> - since PC AND Newt are considered to be DCE, the transmit and receive
> lines are crossed - you need to cross them again in order to match Tx
> and Rx lines of the Newt and the printer

I'll try it with my null-modem Newton cable then. Thx.

> - The Newt does not support handshaking signals for the RS-232 (of the
> printer)- thus you need to select no hardware handshake on the printer
> side or connect the handshake signals of the printer properly
> (null-modem)

Actually, the LJ4 has a menu option to choose RS-422 for serial. IIRC
that=20
is the Apple serial protocol.
>
> From the software I would guess that the printpack software will
provide
> the appropriate Laserjet driver ...

Yes, it does. At least, it has a LaserJet driver; nothing LJ4 spcific,=20
though...

--=20
Karel Jansens.

"Ceteris censeo Fenestras delendas."
(Cato - de Terrore Portarum)

--=20
Read the List FAQ/Etiquette: http://www.newtontalk.net/faq.html
Read the Newton FAQ: http://www.guns-media.com/mirrors/newton/faq/
This is the NewtonTalk mailing list - http://www.newtontalk.net

-- 
Read the List FAQ/Etiquette: http://www.newtontalk.net/faq.html
Read the Newton FAQ: http://www.guns-media.com/mirrors/newton/faq/
This is the NewtonTalk mailing list - http://www.newtontalk.net



This archive was generated by hypermail 2.1.2 : Thu Aug 01 2002 - 06:01:54 EDT