hpoj-devel

RE: [Hpoj-devel] Test report

[PASCHAL,DAVID (HP-Roseville,ex1) <dav...@hp...>]

Hi, Ranier.  Thanks for the feedback.

>         insmod ieee12844
>         insmod ieee12844pp
> 
> ### It should read insmod ieee12884.o ###
I will correct this in the documentation.

> 2) apsfilter
> 
> I am running apsfilter 5.1.4/Debian 2.2 and the installation was
> different than described in PRINT-HOWTO:
So far I haven't focused much on printing, but I'm aware it needs some work.
Part of the problem is that each distribution is a little different about
printing.  At the very least I will include the information you provided
about Debian in the documentation.

> 3) Dynamic library issue: 
> 
> Since ptal-connect is linked against a non-system library I created a
> wrapper script ptal-print (this is not necessary any more as soon
> as hpoj is converted into a standard Debian/RedHat or whatever
> package or the dynamic library is install in /usr/lib.
The next version (0.6) will have a "make install" feature that installs
everything under /usr/local, which can be overridden by passing
"--prefix=DIR" to the configure script.  You will still have to make sure
/usr/local/lib is specified in ld.so.conf and re-run ldconfig, or add the
directory to LD_LIBRARY_PATH.  Will this installation method be acceptable?

> 4) Color printing
> 
> So far color printing was not successful. But I have to check first if
> this is a printer hardware problem (ink empty...). But anyways, if
> somebody has an already written description how to do this, it would
> be welcome (basically I expect that I have to specify another
> OutputDevice in gs).
I have heard (but not yet verified) that ghostscript has problems with color
printing on the 500/600/700 series OfficeJets.

> 5) Scanning
> 
> No success either:
Last night I finally finished my SANE changes to support scanning on the
flatbed OfficeJets, and I submitted them to one of the official SANE
developers for review and checkin to their codebase.  Once that's done
(hopefully this weekend) I'll put out hpoj-0.6 to enable it.

Scanning support for the scrollfed OfficeJets (such as the 635) will not be
included in this release, but it's next on my to-do list.  Hang in there.
:-)

> # /opt/hpoj-0.5/ptal/ptal-connect mlc:mlcpp0 -scan
> ptalMlcChannelOpen(chan=0x0804A668): error connecting socket!
> ptalChannelOpen(chan=0x0804A668): provider failed open!
"ptal-connect -scan" doesn't actually initiate a scan.  It just connects to
the scan data channel on the peripheral.  However, some OfficeJet models
don't allow you to do this unless you've already issued the right PML
commands to initiate the scan, so that's probably why you got this error
message.

> 6) Other vendors
> 
> I want to purchase a all-in-one-device. The only real 
> requirement is cost less than 500 Euro and good linux support 
> (print, scan, copy). Does anybody know, if other vendors 
> provide better linux support than HP does?
Not that I know of.

Since you mentioned you were looking for good Linux support for copying,
could you clarify what exactly you're looking for here?  The 500/600/700
series OfficeJets sometimes need help from the PC to copy a page
(particularly when copying in color), in which case "copy" really means
"scan and then print".  The more recent models have pretty good standalone
copy capabilities.

David

Re: [Hpoj-devel] Test report

[David P. <pa...@rc...>]

> Does anyone know if the comment below applies to enabling scanning for
> the OfficeJet 1150C?  I know that David said before there is a danger
> of carriage damage with that model, and I wouldn't want to try it
> unless I know for sure.  Thanks.

Hi, Gregory.  I fixed that problem.  It turned out that when scanning at
resolutions less than 42 dpi, the carriage moved so fast that it crashed
into the wall on both sides.  My fix was to check for this model and set
a minimum resolution of 50 dpi.  That should give enough of a safety margin.
Of course, if you still experience problems of this nature, stop using it
and let me know.  Fortunately, I don't think I killed the 1150C I was
testing with; it still seems to scan fine despite the abuse I subjected
it to.  :-)

David

Re: [hpoj-devel] Quick Fix

[David P. <pa...@rc...>]

Gregory Allan wrote:
> Is my understanding still correct that color scanning has never been 
> implemented for the OfficeJet 1150C?  I've been subscribing to the 
> list, mostly lurking, for about a year and a half.  Every once in 
> awhile I check out the website just to be sure.
> 
> So, since printing is fairly well implemented through CUPS, I've been 
> maintaining a dual-boot machine for when I needed the scanner 
> interface.  It's about the only thing I still use Windows for.
Hi, Gregory.  The hpoj software has supported Linux scanning on the 1150
for over a year now (starting with version 0.6, released in September of
2000).  This is reflected on the Supported Devices list at
http://hpoj.sourceforge.net/suplist.shtml.

I checked the subscriber lists, and you're subscribed to hpoj-devel
but not hpoj-announce, so that's probably why you missed out on this
information.  (Mind you, in the interest of brevity I don't enumerate
each supported model in the announcements.)

David

Re: [hpoj-devel] Congratulations!

[David P. <pa...@rc...>]

Gregory Allan wrote:
> I'd like to offer my congratulations to the people on this list 
> who've worked so hard on these HP drivers.
> 
> I've followed this list for quite awhile, but never had the time to 
> install the drivers for my 1150C.  Yesterday, I installed Mandrake 
> 8.2, and was both shocked and pleased that Mandrake's install routine 
> identified my 1150C and automatically set up both printing and 
> scanning.
Hi, Gregory.  Thanks for your comments.  I'm glad you like it.

> I did my first ever scan within Linux (in gimp) a few minutes later.  
> It was a color picture, and it came out beautifully.  I also noticed 
> that the scanner interface was more powerful than the Windows version 
> which came with the device, offering many more options.
Note that some of the options the SANE "hp" backend gives you don't
actually do anything on the OfficeJets, due to its legacy of supporting
SCSI-connected ScanJet scanners.  The next hpoj version in the works will
have a new "hpoj" SANE backend that is designed specifically for the
products supported by the hpoj project.

> I don't know how much Mandrake contributed to the auto-setup, but I 
> know the drivers are thanks to you folks.  Thanks again.
Till Kamppeter at Mandrake worked wonders on the auto-detection and setup
integrated in Mandrake-8.2, because hpoj-0.8 isn't very good at that sort
of thing.  :-)  The next hpoj version will be much smoother in that regard.

David

Re: [hpoj-devel] 1150C back for more

[David P. <pa...@rc...>]

Gregory Allan wrote:
> My main problem is that more often than not, sending a job to the 
> printer results in nothing happening.  But I found an odd way to 
> prime the printer and get it working.
> 
> If I send a job to the printer and it doesn't work, I can open Win98 
> under Win4Lin, run the "HP OfficeJet Pro Toolbox", go to "Product 
> Services" and select "Test Product Communication".  Sometimes the 
> test succeeds the first time, sometimes not.  Either way, the printer 
> now (95% of the time, anyway) prints the prior job.  Kind of like I 
> had to shake it a bit to wake it up :-).
Hi, Gregory.  If you have Win4Lin running at the same time as ptal-mlcd,
you're asking for trouble, even if only Win4Lin's kernel modules are
loaded (one of which might tickle the parallel port) without actually
having Windows loaded.

> Obviously something is happening here that I ought to be able to 
> duplicate without the help of Windows.
Does ptal-mlcd report any error messages to syslog (probably
/var/log/messages) when "nothing happens" when you try to print?
When you get into this state, it would also be interesting to run
the "basic device connectivity" tests suggested in the hpoj
documentation.  In particular, run "ptal-connect <devname> -service ECHO",
type several lines of text, and see if they get echoed back to you.
Also, try running "ptal-hp <devname> device".  (Substitute for "<devname>"
the actual PTAL device name for your device, such as "mlc:par:0").

David

Re: [Hpoj-devel] Test report

[Andreas S. <as...@sc...>]

Hi David,

> Last night I finally finished my SANE changes to support scanning on
the
> flatbed OfficeJets, and I submitted them to one of the official SANE
> developers for review and checkin to their codebase.  Once that's done

> (hopefully this weekend) I'll put out hpoj-0.6 to enable it.

sounds great!

Andreas