Printing complicated postscript documents makes my Kyocera FS-1010
hit that timeout. I increased it to 240 seconds and the problem
seems to have disappeared.
I guess there ought to be a blacklist or something.
Mark J Roberts writes:
>Printing complicated postscript documents makes my Kyocera FS-1010
>hit that timeout. I increased it to 240 seconds and the problem
>seems to have disappeared.
>
>I guess there ought to be a blacklist or something.
I saw a similar thing a few weeks ago (under 2.5.27?) with the
Hewlett-Packard 656C ink jet printer, which only occurred when I would
send a page with images on it, so the printer really would need a long
time before it was ready to accept more data.
I would hope that the kernel should be able to wait as long
as the printer wants before the printer indicates that it is ready for
more data. I don't know if this is a bug in these printers' USB
implementations or if it is a real kernel bug. I just haven't had
time to investigate it yet (and I no longer have access to that printer,
although 656C's are only $30 at Fry's).
Adam J. Richter __ ______________ 575 Oroville Road
[email protected] \ / Milpitas, California 95035
+1 408 309-6081 | g g d r a s i l United States of America
"Free Software For The Rest Of Us."
On Thu, Aug 08, 2002, Adam J. Richter <[email protected]> wrote:
> Mark J Roberts writes:
> >Printing complicated postscript documents makes my Kyocera FS-1010
> >hit that timeout. I increased it to 240 seconds and the problem
> >seems to have disappeared.
> >
> >I guess there ought to be a blacklist or something.
>
> I saw a similar thing a few weeks ago (under 2.5.27?) with the
> Hewlett-Packard 656C ink jet printer, which only occurred when I would
> send a page with images on it, so the printer really would need a long
> time before it was ready to accept more data.
>
> I would hope that the kernel should be able to wait as long
> as the printer wants before the printer indicates that it is ready for
> more data. I don't know if this is a bug in these printers' USB
> implementations or if it is a real kernel bug. I just haven't had
> time to investigate it yet (and I no longer have access to that printer,
> although 656C's are only $30 at Fry's).
I suspect it's a bug in the kernel.
It sounds like the printer is NAKing all of the transfers while it's
busy flushing out the data sent to it. This is to be expected because it
can only store so much data and sending data is MUCH faster than it can
print it.
I think the problem is that the printer driver has a timeout. I don't
think it should. It just doesn't make sense in this case. I say let the
device NAK as long as it wants. It's the applications job to decide if
it's been too long or not.
JE