>>>>> "Rick" == Rick Meyerhoff <rick at eworld3.net> writes:

    Rick> Robert P. Goldman wrote:
    >> Does anyone have any suggestions about debugging cups?  I have a

    >> Samsung printer and I find that cups bogs down depressingly often.

    Rick> What do you mean by "bogs down"? Please be more specific.

    >> Everything just goes to sleep in the middle of a print job, often

    Rick> Ditto for "goes to sleep".

I get no blinky "data" lights on the printer, and nothing comes out.

    >> after printing just the first page.  But then, when I restart cups
    >> (this is Mandrake, so it's /etc/rc.d/init.d/cups restart), everything
    >> comes back.

    Rick> Ditto for "comes back". CUPS has a web interface which may be more 
    Rick> useful and provide more info.

The blinky data transmission lights come back on, and the print job
resumes where it left off.

This always happens on a page boundary.  I.e., it finishes printing a
page and then stops.

    >> 
    >> I was just hoping someone might be able to suggest where to begin.
    >> I.e., should I look for some common factor in the ps that's going to
    >> the printer?  Is there some way to tell what state the system's in

    Rick> If cups "bogs down" on certain documents but not others then
    Rick> I might suspect postscript. I sorta doubt it's a postscript
    Rick> problem though.

I haven't found anything systematic...

    >> when it bogs (there's no visible data interchange with the printer;
    >> there are entries still in the queue)?  I'm willing to work at it; I
    >> just don't know where to start.

    Rick> The 'top' command might tell you who's busy. We also need to
    Rick> know more about your set up: what kind of printer is it? is
    Rick> it connected to a computer or right on the network? do you
    Rick> have machines with multiple OS's accessing the printer? do
    Rick> they all behave the same?

It's a Samsung ML-1210 laser printer.  It's directly connected to my
machine, through a parallel port.

I do have machines with multiple OS's accessing the printer:  one
windows and a second Mandrake 9.1.  They all behave the same, AFAICT.

Is there any way to peer into the internal state of the printer and
drivers?  I have blundered around in the CUPS web interface, but
didn't stumble over anything useful.  But maybe I'm not using the
right part fo the interface...

Thanks,

R

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