On 03/01/2007, Will Hawes <[EMAIL PROTECTED]> wrote:
>
> On 03/01/07, Aaron <[EMAIL PROTECTED]> wrote:
> > On 1/2/07, Will Hawes <[EMAIL PROTECTED]> wrote:
> > > On 21/12/06, Suffield, David <[EMAIL PROTECTED]> wrote:
> > > > The following syslog message tells me that hpiod is timing out
> waiting
> > > > for USB data from the scanner.
> > > >
> > > > Dec 18 15:28:28 gateway hpiod: unable to read MlcReverseCmd header:
> > > > Resource temporarily unavailable
> > > > Dec 18 15:28:28 gateway hpiod: invalid MlcCredit from peripheral,
> trying
> > > > miser Dec 18 15:29:13 gateway hpiod: unable to read MlcReverseCmd
> > > > header:
> > > > Resource temporarily unavailable
> > > > Dec 18 15:29:13 gateway hpiod: invalid MlcCredit from peripheral Dec
> 18
> > > > 15:29:14 gateway hpiod: device cleanup
> > > > uri=hp:/usb/PSC_2200_Series?serial=MY283D26QH0G
> > > >
> > > > Are you getting this syslog message consistently every time you
> start a
> > > > scan job from xsane or scanimage?
> > >
> > > Yes, every time without exception.
> > >
> > > > If so this may be caused by your USB hardware. Eliminate any USB
> hubs
> > > > and plug your PSC 2210 directly into the PC. Some cheap USB hubs
> (and
> > > > some mother boards) do not support 1284.4 well. 1284.4 support is
> needed
> > > > for scanning. 1284.4 is not needed for printing.
> > >
> > > The printer is (and always has been) connected directly via the OEM
> > > USB cable. If the printer is connected to a Windows box using the same
> > > cable, both printing and scanning work fine.
> > >
> > > The motherboard is the one that was used for a previous Ubuntu
> > > Dapper/HPLIP 0.9.7 install for which scanning worked OK.
> > >
> > > I've now set up a fresh Dapper installation on a separate machine and
> > > installed HPLIP 1.6.12 following the instructions at
> > > http://hplip.sourceforge.net. Attempting to scan gives me the same
> > > MlcCredit errors described earlier.
> > >
> > > Is there anything else I can do to diagnose this further?
> > >
> > > Will
>
> > Has your printer 'ever' worked with linux? If so when? If not, do
> > you happen to have a usb hub (1.0 or 1.1 not usb 2.0) that you could
> > try to connect to the printer though?
> >
> > A
>
> Printing always did (and still does) work with pretty much every
> combination of Ubuntu/HPLIP I've tried.
>
> Scanning has only ever worked on one Ubuntu Dapper install with HPLIP
> 0.9.7, but although I've tried to reproduce this setup on the very
> same machine it doesn't any longer. :-/
>
> I don't think there's a USB hub kicking around here anywhere, but for
> what they cost I can buy one if you think it would help. What's the
> thinking here - could this problem be related to the use of USB 2.0
> ports on the motherboard?
>
> Thanks
>
> Will
>
It's been a while, but I never did get this solved. I've today reproduced
identical behaviour on a new machine with different spec motherboard, this
time running a fresh install of Ubuntu 7.04 (feisty).
If the problem is that both these motherboards have poor 1284.4 support,
will using a suitable USB hub circumvent the problem, or is the only
solution to use a different motherboard?
Assuming a hub could work, please could you let me know what type I should
obtain, ie. USB 1.0, 1.1 or 2.0, anything specific I need to look for on the
packaging in terms of supported features?
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