AVSIG: Network Print from MSDOS wwswsigarch.jpg (7236 bytes)

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Russell Holton
AVSIG Member


Reged: 07/07/05
Posts: 14136
Re: Network Print from MSDOS [Re: Sean Franklin]
      #140026 - 01/09/07 07:22 PM

Wouldn't it just be necessary to install that same program on the computer with the DOS program and then point it to the shared printer?

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Sean Franklin
Top Gun


Reged: 08/15/04
Posts: 2566
Loc: Eureka Springs, Arkansas
Re: Network Print from MSDOS [Re: Russell Holton]
      #140029 - 01/10/07 01:23 AM

Quote:

Wouldn't it just be necessary to install that same program on the computer with the DOS program and then point it to the shared printer?



Unfortunately it's probably not possible. GDI mode printers are also known as "Windows printers". They lack any sort of page processing capability (e.g. PCL, PostScript, etc.) - all of that is replaced by a Windows background process that "emulates" the page processing and then outputs raw data to the printer via a bi-directional USB or parallel interface. It's "hooked" into the Windows print queue such that any Windows program will see it as a normal printer, and doesn't need to be aware that anything different is happening. That allows the printer to be shared to other Windows printers on the network.

To print from DOS, though, there is another layer at work. The DOS emulator captures data being delivered to an LPT: port, translates it from PCL/PS/whatever into a native GDI (Graphical Data Interface) image, then feeds it directly to the GDI emulator. While it's possible to write such an interface that works across a network, it's unlikely that any stock software from a GDI printer is set up to do that. GDI printers are about one thing - low cost. By eliminating hardware from the printer and replacing it with a program, the printer can be made cheaper. No GDI printers I've ever seen include software that can be installed on remote workstations other than a standard Windows driver.

--------------------
Eureka Springs, Arkansas


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Ron Rosenfeld (EPM)
Public Guest


Reged: 04/28/04
Posts: 2772
Loc: Maine
Network Print from MSDOS [Re: Sean Franklin]
      #140030 - 01/10/07 01:32 AM

Sean,

<< There's a program installed on your computer that allows the GDI to work
<< from DOS but that would not translate over a network.

Aha. That explains why this printer's predecessor worked flawlessly when
connected to the parallel port. I wonder why it won't work over the network.

I found a shareware program that seems to work OK -- capturing an LPT port
and directing it to the network printer. It's called DOS2USB. There seem to
be a few other programs out there also that do the same thing. That will be
a better solution for me.

Of course, I could upgrade the accounting program. But the Windows version
of this 20+ year old DOS program is almost $700 (just for the G/L module,
which is what I need). Maybe they'll give me a break for using an antique
<g>.

Best,

--------------------
--ron


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Russell Holton
AVSIG Member


Reged: 07/07/05
Posts: 14136
Re: Network Print from MSDOS [Re: Sean Franklin]
      #140186 - 01/11/07 06:56 PM

Quote:

GDI mode printers are also known as "Windows printers". They lack any sort of page processing capability (e.g. PCL, PostScript, etc.) - all of that is replaced by a Windows background process that "emulates" the page processing and then outputs raw data to the printer via a bi-directional USB or parallel interface.




Yeah I figured that much, but I thought there was still a way to share it across the network. May depend on the driver.


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