CUPS, USB printers & "Permission Denied"

[Anthony Agelastos]

On Jun 25, 2006, at 11:37 PM, Nicolas Blais wrote:

> On Sunday 25 June 2006 23:32, John Nielsen wrote:
>> On Sunday 25 June 2006 20:04, Anthony Agelastos wrote:
>>> On Jun 25, 2006, at 7:35 PM, John Nielsen wrote:
>>>> On Sunday 25 June 2006 19:28, Anthony Agelastos wrote:
>>>>> I updated CUPS and I cannot print to my USB laser printer. The web
>>>>> interface shows the following:
>>>>>
>>>>> hp_LaserJet_1160Le (Default Printer) "Unable to open USB device
>>>>> "usb:/dev/ulpt0": Permission denied"
>>>>>     Description: Hewlett-Packard LaserJet 1160Le
>>>>> Location: Den
>>>>> Make and Model: HP LaserJet 1160 Foomatic/hpijs (recommended)
>>>>> Printer State: stopped, accepting jobs, published.
>>>>> Device URI: usb:/dev/ulpt0
>>>>>
>>>>> Doing a `dmesg | grep ulpt0`, I get
>>>>>
>>>>> ulpt0: Hewlett-Packard hp LaserJet 1160 series, rev 1.10/1.00,
>>>>> addr 2,
>>>>> iclass 7/1
>>>>> ulpt0: using bi-directional mode
>>>>>
>>>>> The printer itself works (I plugged it directly into my MacBook
>>>>> and it
>>>>> printed fine). To ensure it wasn't an awkward build error, I  
>>>>> issued a
>>>>>
>>>>> `portupgrade -fR cups`
>>>>>
>>>>> and rebuilt it and everything it is dependent upon. Does anyone
>>>>> else have
>>>>> any ideas? I am running an early 6.1-STABLE (FreeBSD dell.home.iq
>>>>> 6.1-RELEASE FreeBSD 6.1-RELEASE #0: Sat May 13 01:04:32 EDT 2006
>>>>> root at dell.home.iq:/usr/obj/usr/src/sys/IQKERNEL  i386).
>>>>
>>>> Just a "me too" so far with an el cheapo Lexmark USB laser printer
>>>> (E210).
>>>> Are you using the foomatic script? I am, with a PPD from
>>>> linuxprinting.org.
>>>
>>> I am not sure, actually (it was so long ago, I do not remember how I
>>> got it working). I installed hpijs and "Make and Model" mentions
>>> Foomatic/hpijs, so perhaps. I am sorry I could not be of more
>>> assistance with this question.
>>>
>>>> I'm going to try backing up and blowing away my etc/cups dir, re-
>>>> updating
>>>> the port, reinstalling foomatic and my ppd, and see if that  
>>>> makes any
>>>> difference. I'll post whatever I learn.
>>>
>>> Thank you for posting your findings and for your quick reply.
>>
>> No luck. I basically re-installed everything (including config  
>> files and
>> the foomatic filters) from scratch. I also changed the permissions
>> on /dev/ulpt0 to be 0664 for root:cups. That prevents the permissions
>> error, but I still get nothing from the printer. The message that  
>> comes up
>> in the cups web interface when I try to print a test page is:
>>
>> "/usr/local/libexec/cups/backend/usb failed"
>>
>> I did get my other printer (on a different machine) working with  
>> cups 1.2.0
>> by just changing the permissions on the device node. I hadn't ever  
>> set this
>> printer up with cups before today, though. It's using gutenprint.
>>
>
> After playing with the permissions on ulpt, I can print a test  
> page, though
> half of it comes out after I manually feed my printer.
>
> After that half-printed page, anything I try to print after will  
> get me a "USB
> port busy; will retry in 30 seconds..." message and it never prints.
>
My system essentially does the same thing (the 30 second message that  
is). After changing my  LogLevel and killing and resubmitting a test  
page, here is my error_log file. Does anyone else have any idea what  
I can try next? Everyone on this list has been wonderful with this  
thread. Thanks again.

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