Print jobs not printing thru cups

[Michael Lai]

I am running Fedora 4, linux version: 2.6.12-1.1398_FC4, with 
cups-1.1.23-15.1.

I have two printers:

HP LaserJet4L (via serial)    and
HP LaserJet1300 (via usb)

My main problem is with my LaserJet1300.  When I initially added the 
printer, all my print jobs sent to LaserJet1300 were printed with no 
problem.  Then last week I noticed that some print jobs were not 
printing and I had to start the print job a couple of times before it 
would actually print.  Then starting a couple of days ago, none of the 
print jobs sent to that printer would print anymore and all the 
application (ie MS Word) that started the print job would hang.  This 
didn't happen before.
I configured my cups through system-config-printer.  For the 
LaserJet1300, I am using the Postscript driver.  I set the log level to 
debug and I am attaching it here for analysis.

Thanks in advance.
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