printing via serial to usb cable

[Karl F. Larsen]

Wade Smart wrote:
> Karl F. Larsen wrote:
>   
>> Wade Smart wrote:
>>     
>>> Karl F. Larsen wrote:
>>>   
>>>       
>>>> Wade Smart wrote:
>>>>     
>>>>         
>>>>> 20090128 0906 GMT-5
>>>>>
>>>>> I recently posted about my parallel to usb cable causing lots of 
>>>>> problems on my system - and since I received no help there I decided to 
>>>>> try something else.
>>>>>
>>>>> I borrowed a serial to usb cable. I was able to print a test page by:
>>>>> sudo echo "Printer Test" > /dev/ttyUSB0
>>>>>
>>>>> but I havent been able to print any other way.
>>>>>
>>>>> In cups I changed the uri to usb://dev/ttyUSB0 and then I ran the 
>>>>> configure script but nothing changed.
>>>>>
>>>>> What else can I try?
>>>>>
>>>>> Wade
>>>>>
>>>>>   
>>>>>       
>>>>>           
>>>>     The problem your having is VERY POOR devices to convert an old 
>>>> Parallel port to a USB port. This is just a terrible thing to design! 
>>>> You have data arriving in parallel and sent out in serial by the USB 
>>>> port. The converter has to process the data bits fast enough to get it done.
>>>>
>>>>
>>>>     Now going from Serial to USB is a much better thing to design. But 
>>>> you need to remember that the serial port has some weird things hard for 
>>>> the USB port to handle. But if you got it to work at least once, go to 
>>>> the printer setup system and set it for a serial port and I may work.
>>>>
>>>>
>>>> Karl
>>>>
>>>>
>>>>     
>>>>         
>>> 20090128 0932 GMT-5
>>>
>>> In cups I have the uri set to the above.
>>>
>>> Running lsusb:
>>> Bus 002 Device 082: ID 05ad:0fba Y.C. Cable U.S.A., Inc.
>>>
>>> The driver that worked for the parallel to usb was the HP LaserJet 4050 
>>> Foomatic/hpijs.hpijs 2.8.2.10 - HPLP 2.8.2 [en].
>>>
>>> In cups:
>>> Device: gives me a drop down list with the first one being AppSocket/HP 
>>> JetDirect - which Im assuming is the right one to use.
>>>
>>> Wade
>>>
>>>   
>>>       
>>     Can you go to System -> Administration -> Printing? This is what I 
>> use to set up a printer on knome on Hardy and Intrepid.
>>
>>
>> Karl
>>     
>
> 20090128 1011 GMT-5
>
> I changed it in cups and it showed changed there too.
>
> I just looked at the error log in cups:
> E [28/Jan/2009:10:09:54 -0600] [Job 32] Unable to open device file 
> "/dev/ttyUSB0": Permission denied
>
> E [28/Jan/2009:10:09:54 -0600] cupsdAuthorize: Local authentication 
> certificate not found!
>
> E [28/Jan/2009:10:10:23 -0600] cupsdAuthorize: Local authentication 
> certificate not found!
>
> E [28/Jan/2009:10:10:23 -0600] cupsdAuthorize: Local authentication 
> certificate not found!
>
> E [28/Jan/2009:10:10:23 -0600] cupsdAuthorize: Local authentication 
> certificate not found!
>
>
>   
    your about to win the prize for the longest running Question :-)

It occurs to me your using an ink jet printer. Why not give it to the 
trash man and buy a new one at Sam's or Wal Mart. I looked and ink jets 
are selling for under $40.00 and the new ones all have USB ports to the 
computer. And a friend told me the Dollar Stores have the cable  for 
$1:00 each.

Karl
 

-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.
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