I am having an issue with printing. My users' local print queues seem to be disabling randomly. I have an Oce TDS400 with its own controller, a network HP printer with a queue set up on an SGI server, and a network HP1055 plotter that is connected via a Jet Direct card. Once the printers/plotters disable, I cannot re-enable the local queues unless I restart the scheduler. I tried an lpsched -v but the logs show nothing and I tried adding a nohup in front of the lpsched command in /sbin/init.d/lp. I explored the possibility of file types causing the queues to disable but tests were inconclusive. Does anyone have any suggestions?