[cups.general] Failed to read side-channel request!

[Michael Sweet]

On Jan 1, 2010, at 2:44 PM, William Wilson wrote:
>> [Please don't cross-post]
>> 
>> On Jan 1, 2010, at 12:29 PM, Steve H. wrote:
>>> I recently updated my Mac Laptop OS to 10.6.2 and now my HP LaserJet =
>> 4050n will not print.  I've tried adding the printer again and again =
>> using different options, but still get "Failed to read side-channel =
>> request!"
>> 
>> 
>> Try deleting and re-adding the printer - it is possible that your queue =
>> did not get updated properly.
>> 
>> ___________________________________________________
>> Michael Sweet, Senior Printing System Engineer
>> 
>> 
>> 
> I have the same problem with a HP 2605dn after installing 10.6.2 and also upgrading my firmware on my 2009 macbook pro.  I suspect the firmware upgrade in that my wife's 2008 macbook pro which also has 10.6.2 is does not have the same problem.  Another update I made in the same time frame as the firmware upgrade was to install VMWare Fusion 3.
> 
> I have deleted the 2605dn several times and re-added several times.  I still encounter "Failed to read side-channel request" when I try to print to the 2605dn.

First try using the Generic PostScript driver with this printer.  If that works, you've run into an HP driver bug.

Either way, please file a bug with Apple (http://bugreport.apple.com or via AppleCare) so we can track down the problem.

___________________________________________________
Michael Sweet, Senior Printing System Engineer