How to test cups printer system

[fred smith]

On Fri, Nov 21, 2008 at 08:57:23AM -0500, Dave Feustel wrote:
> On Fri, Nov 21, 2008 at 01:26:25PM +0000, Tim Waugh wrote:
> > On Fri, 2008-11-21 at 08:00 -0500, Dave Feustel wrote:
> > > There are quite a few reports of the "not connected" problem found by
> > > Google for a variety of operating systems using CUPS..  Is there a
> > > simple way to test the printer directly (eg bypassing the entire CUPS /
> > > LPD system )?
> > 
> > Not usefully.  The problem is that the CUPS backend has not been able to
> > "connect" to the device, whatever that means for the particular backend
> > type.  In IPP terms, the "connecting-to-device" state is still present
> > for the printer object, and has been for a while (60 seconds).
> > 
> > What this really means can depend on which backend is being used.  For
> > usb://... URIs it means that the USB device node couldn't be opened; for
> > hp://... URIs it means that HPLIP wasn't able to find/connect to the
> > device.  For network-type URIs (other than ipp) it might be a network
> > level problem, etc.
> > 
> > I'd really like to get the printing troubleshooter working in this
> > instance, as it performs different diagnostic checks depending on the
> > backend in use.
> > 
> > Tim.
> > */
> 
> The troubleshooting function seems to always stop responding as soon
> as the printer is selected and the 'foreward' button is selected.
> 
> There is a way (which I have forgotten) to send data directly to the
> printer port. I would like to try that just to verify that the printer
> port itself is working.

If the printer itself can print plain text when you send it plain text (not all can)
you could try something like:

	ls -l > /dev/device

where /dev/device is whatever device node the printer is attached to.

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