Re: [hpoj-devel] ptal-mlcd ECP changes

[Bob P. <bpa...@cs...>]

> Bob Paddock wrote:
> > I've got a OJ710, on the LPT1 parallel port.  I was under the impression
> > that scanning didn't work yet so I never even tried.  What do you want me
> > to try?
>
> First run "cvs update" from the top-level hpoj directory to ensure you have
> the latest code and documentation, and rebuild if necessary.  SCAN-HOWTO
> should cover what you need to know for scanning.  In your case, you'll want
> to follow the "ptal-hp" section at the end, rather than the SANE section at
> the beginning.

I started with a fresh checkout/build rather than the update.

First scan was a color page, the printer test page that I had made not long 
ago.  Came out fine.  Used the defaults.

Second scan at -300 came out ok, but it took about 3 minutes to scan it, it 
was a black and white page, but it was probably still scanned as color since 
I did change any thing besides adding the -300.

I loaded up the out.jpg image with KView then my machine started going so 
slow it was useless, the mouse moved in great leaps and lunges.  Had to cycle 
power.  Don't know if this is in any way related to scanning, for the moment 
lets assume that it was not.  The scan did look fine.

Third scan of b&w page in color with the defaults got me:
patlChannelRead returns 0!
Broken Pipe.

Scanned next page with no problem.

All pages looked like there where twice as long as they should have been when 
viewing out.jpg in the viewer.  Last half was a blank gray looking thing, 
probably scanned the color of the unit it self.

What I could not figure out how to make it do was scan all of the loaded 
pages?  Having a autofeed scanner is kind-of useless if you have to manually 
intervene for each page.  Same complaint I have about the HP710 standard 
windows software (I would not have bought the thing had I known that up 
front).

I do have (x)sane 1.0.4/0.76 loaded on here if you want any thing tested.  I 
use it with my Epson scanner all of the time.

> > Printing has been working fine for me.
> >
> > I just get confused at times because one program refers to the print que
> > as 'lpr', one as 'hpoj', one as 'default printer'.  Use the wrong one
> > with the wrong program and you get nothing printed.  Nothing really to do
> > with th OJ drivers per'se.  Linux could learn a lot from windows in this
> > area...
>
> When you say "program", are you referring to various application programs
> you're trying to print from?

Yes.

Ran in to a new one just after I posted that message last night.  To get Gimp 
to print I had to put in 'lpr-cups', so that gets me to:

lpr
lpr-cups
"default printer"
hpoj

for four different application programs.  A couple of other programs I just 
gave up on and switched to windows to print stuff because I was in a hurry 
and could not figure out the right magic words.


> and the default printer (if no "-P<queue>" is
> specified) is normally the first entry in /etc/printcap.  (I realize this
> isn't very intuitive.)

This is my printcap file in its entirety:

HPOJ:

just those five chars.